diff --git a/homeassistant/components/__init__.py b/homeassistant/components/__init__.py
index e0b008cab5e..10e18216ea0 100644
--- a/homeassistant/components/__init__.py
+++ b/homeassistant/components/__init__.py
@@ -87,13 +87,21 @@ def setup(hass, config):
                                lambda item: util.split_entity_id(item)[0])
 
         for domain, ent_ids in by_domain:
+            # We want to block for all calls and only return when all calls
+            # have been processed. If a service does not exist it causes a 10
+            # second delay while we're blocking waiting for a response.
+            # But services can be registered on other HA instances that are
+            # listening to the bus too. So as a in between solution, we'll
+            # block only if the service is defined in the current HA instance.
+            blocking = hass.services.has_service(domain, service.service)
+
             # Create a new dict for this call
             data = dict(service.data)
 
             # ent_ids is a generator, convert it to a list.
             data[ATTR_ENTITY_ID] = list(ent_ids)
 
-            hass.services.call(domain, service.service, data, True)
+            hass.services.call(domain, service.service, data, blocking)
 
     hass.services.register(ha.DOMAIN, SERVICE_TURN_OFF, handle_turn_service)
     hass.services.register(ha.DOMAIN, SERVICE_TURN_ON, handle_turn_service)
diff --git a/homeassistant/components/alarm_control_panel/verisure.py b/homeassistant/components/alarm_control_panel/verisure.py
index cc9f8dde69d..ea48209a0fd 100644
--- a/homeassistant/components/alarm_control_panel/verisure.py
+++ b/homeassistant/components/alarm_control_panel/verisure.py
@@ -67,7 +67,7 @@ class VerisureAlarm(alarm.AlarmControlPanel):
             self._state = STATE_ALARM_DISARMED
         elif verisure.ALARM_STATUS[self._id].status == 'armedhome':
             self._state = STATE_ALARM_ARMED_HOME
-        elif verisure.ALARM_STATUS[self._id].status == 'armedaway':
+        elif verisure.ALARM_STATUS[self._id].status == 'armed':
             self._state = STATE_ALARM_ARMED_AWAY
         elif verisure.ALARM_STATUS[self._id].status != 'pending':
             _LOGGER.error(
diff --git a/homeassistant/components/alexa.py b/homeassistant/components/alexa.py
index 0b06f3c9a79..66ac9de0b43 100644
--- a/homeassistant/components/alexa.py
+++ b/homeassistant/components/alexa.py
@@ -11,6 +11,7 @@ import logging
 
 from homeassistant.const import HTTP_OK, HTTP_UNPROCESSABLE_ENTITY
 from homeassistant.util import template
+from homeassistant.helpers.service import call_from_config
 
 DOMAIN = 'alexa'
 DEPENDENCIES = ['http']
@@ -23,6 +24,7 @@ API_ENDPOINT = '/api/alexa'
 CONF_INTENTS = 'intents'
 CONF_CARD = 'card'
 CONF_SPEECH = 'speech'
+CONF_ACTION = 'action'
 
 
 def setup(hass, config):
@@ -80,6 +82,7 @@ def _handle_alexa(handler, path_match, data):
 
     speech = config.get(CONF_SPEECH)
     card = config.get(CONF_CARD)
+    action = config.get(CONF_ACTION)
 
     # pylint: disable=unsubscriptable-object
     if speech is not None:
@@ -89,6 +92,9 @@ def _handle_alexa(handler, path_match, data):
         response.add_card(CardType[card['type']], card['title'],
                           card['content'])
 
+    if action is not None:
+        call_from_config(handler.server.hass, action, True)
+
     handler.write_json(response.as_dict())
 
 
diff --git a/homeassistant/components/automation/__init__.py b/homeassistant/components/automation/__init__.py
index 23d83f554ca..9c464f6954e 100644
--- a/homeassistant/components/automation/__init__.py
+++ b/homeassistant/components/automation/__init__.py
@@ -9,9 +9,9 @@ https://home-assistant.io/components/automation/
 import logging
 
 from homeassistant.bootstrap import prepare_setup_platform
-from homeassistant.util import split_entity_id
-from homeassistant.const import ATTR_ENTITY_ID, CONF_PLATFORM
+from homeassistant.const import CONF_PLATFORM
 from homeassistant.components import logbook
+from homeassistant.helpers.service import call_from_config
 
 DOMAIN = 'automation'
 
@@ -19,8 +19,6 @@ DEPENDENCIES = ['group']
 
 CONF_ALIAS = 'alias'
 CONF_SERVICE = 'service'
-CONF_SERVICE_ENTITY_ID = 'entity_id'
-CONF_SERVICE_DATA = 'data'
 
 CONF_CONDITION = 'condition'
 CONF_ACTION = 'action'
@@ -96,22 +94,7 @@ def _get_action(hass, config, name):
         _LOGGER.info('Executing %s', name)
         logbook.log_entry(hass, name, 'has been triggered', DOMAIN)
 
-        domain, service = split_entity_id(config[CONF_SERVICE])
-        service_data = config.get(CONF_SERVICE_DATA, {})
-
-        if not isinstance(service_data, dict):
-            _LOGGER.error("%s should be a dictionary", CONF_SERVICE_DATA)
-            service_data = {}
-
-        if CONF_SERVICE_ENTITY_ID in config:
-            try:
-                service_data[ATTR_ENTITY_ID] = \
-                    config[CONF_SERVICE_ENTITY_ID].split(",")
-            except AttributeError:
-                service_data[ATTR_ENTITY_ID] = \
-                    config[CONF_SERVICE_ENTITY_ID]
-
-        hass.services.call(domain, service, service_data)
+        call_from_config(hass, config)
 
     return action
 
diff --git a/homeassistant/components/device_tracker/owntracks.py b/homeassistant/components/device_tracker/owntracks.py
index e81952eb770..e1b0e1de306 100644
--- a/homeassistant/components/device_tracker/owntracks.py
+++ b/homeassistant/components/device_tracker/owntracks.py
@@ -71,7 +71,7 @@ def setup_scanner(hass, config, see):
         location = ''
         if data['event'] == 'enter':
 
-            if data['desc'] == 'home':
+            if data['desc'].lower() == 'home':
                 location = STATE_HOME
             else:
                 location = data['desc']
diff --git a/homeassistant/components/light/vera.py b/homeassistant/components/light/vera.py
index bcf27eab5f7..42a5e7b7899 100644
--- a/homeassistant/components/light/vera.py
+++ b/homeassistant/components/light/vera.py
@@ -7,16 +7,15 @@ For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/light.vera/
 """
 import logging
-import time
 
 from requests.exceptions import RequestException
 from homeassistant.components.switch.vera import VeraSwitch
 
 from homeassistant.components.light import ATTR_BRIGHTNESS
 
-from homeassistant.const import EVENT_HOMEASSISTANT_STOP
+from homeassistant.const import EVENT_HOMEASSISTANT_STOP, STATE_ON
 
-REQUIREMENTS = ['pyvera==0.2.2']
+REQUIREMENTS = ['pyvera==0.2.3']
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -59,7 +58,7 @@ def setup_platform(hass, config, add_devices_callback, discovery_info=None):
 
     lights = []
     for device in devices:
-        extra_data = device_data.get(device.deviceId, {})
+        extra_data = device_data.get(device.device_id, {})
         exclude = extra_data.get('exclude', False)
 
         if exclude is not True:
@@ -86,5 +85,5 @@ class VeraLight(VeraSwitch):
         else:
             self.vera_device.switch_on()
 
-        self.last_command_send = time.time()
-        self.is_on_status = True
+        self._state = STATE_ON
+        self.update_ha_state()
diff --git a/homeassistant/components/media_player/cast.py b/homeassistant/components/media_player/cast.py
index 87117cfd367..c0717edc860 100644
--- a/homeassistant/components/media_player/cast.py
+++ b/homeassistant/components/media_player/cast.py
@@ -20,7 +20,7 @@ from homeassistant.components.media_player import (
     SUPPORT_PREVIOUS_TRACK, SUPPORT_NEXT_TRACK,
     MEDIA_TYPE_MUSIC, MEDIA_TYPE_TVSHOW, MEDIA_TYPE_VIDEO)
 
-REQUIREMENTS = ['pychromecast==0.6.13']
+REQUIREMENTS = ['pychromecast==0.6.14']
 CONF_IGNORE_CEC = 'ignore_cec'
 CAST_SPLASH = 'https://home-assistant.io/images/cast/splash.png'
 SUPPORT_CAST = SUPPORT_PAUSE | SUPPORT_VOLUME_SET | SUPPORT_VOLUME_MUTE | \
diff --git a/homeassistant/components/media_player/plex.py b/homeassistant/components/media_player/plex.py
index 6925f942be4..52dd399cedf 100644
--- a/homeassistant/components/media_player/plex.py
+++ b/homeassistant/components/media_player/plex.py
@@ -35,7 +35,7 @@ SUPPORT_PLEX = SUPPORT_PAUSE | SUPPORT_PREVIOUS_TRACK | SUPPORT_NEXT_TRACK
 
 
 def config_from_file(filename, config=None):
-    ''' Small configuration file management function'''
+    """ Small configuration file management function. """
     if config:
         # We're writing configuration
         try:
@@ -85,7 +85,7 @@ def setup_platform(hass, config, add_devices_callback, discovery_info=None):
 
 # pylint: disable=too-many-branches
 def setup_plexserver(host, token, hass, add_devices_callback):
-    ''' Setup a plexserver based on host parameter'''
+    """ Setup a plexserver based on host parameter. """
     import plexapi.server
     import plexapi.exceptions
 
diff --git a/homeassistant/components/mqtt/__init__.py b/homeassistant/components/mqtt/__init__.py
index b5ea258c5cc..86dce3d511b 100644
--- a/homeassistant/components/mqtt/__init__.py
+++ b/homeassistant/components/mqtt/__init__.py
@@ -149,9 +149,9 @@ class MQTT(object):
         }
 
         if client_id is None:
-            self._mqttc = mqtt.Client()
+            self._mqttc = mqtt.Client(protocol=mqtt.MQTTv311)
         else:
-            self._mqttc = mqtt.Client(client_id)
+            self._mqttc = mqtt.Client(client_id, protocol=mqtt.MQTTv311)
 
         self._mqttc.user_data_set(self.userdata)
 
diff --git a/homeassistant/components/sensor/eliqonline.py b/homeassistant/components/sensor/eliqonline.py
index 151b679b10e..4e6b8a5c342 100644
--- a/homeassistant/components/sensor/eliqonline.py
+++ b/homeassistant/components/sensor/eliqonline.py
@@ -70,5 +70,8 @@ class EliqSensor(Entity):
 
     def update(self):
         """ Gets the latest data. """
-        response = self.api.get_data_now(channelid=self.channel_id)
-        self._state = int(response.power)
+        try:
+            response = self.api.get_data_now(channelid=self.channel_id)
+            self._state = int(response.power)
+        except TypeError:  # raised by eliqonline library on any HTTP error
+            pass
diff --git a/homeassistant/components/sensor/openweathermap.py b/homeassistant/components/sensor/openweathermap.py
index 14e8d60c7c6..84784a19546 100644
--- a/homeassistant/components/sensor/openweathermap.py
+++ b/homeassistant/components/sensor/openweathermap.py
@@ -13,14 +13,14 @@ from homeassistant.util import Throttle
 from homeassistant.const import (CONF_API_KEY, TEMP_CELCIUS, TEMP_FAHRENHEIT)
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['pyowm==2.2.1']
+REQUIREMENTS = ['pyowm==2.3.0']
 _LOGGER = logging.getLogger(__name__)
 SENSOR_TYPES = {
     'weather': ['Condition', ''],
     'temperature': ['Temperature', ''],
     'wind_speed': ['Wind speed', 'm/s'],
     'humidity': ['Humidity', '%'],
-    'pressure': ['Pressure', 'hPa'],
+    'pressure': ['Pressure', 'mbar'],
     'clouds': ['Cloud coverage', '%'],
     'rain': ['Rain', 'mm'],
     'snow': ['Snow', 'mm']
diff --git a/homeassistant/components/sensor/vera.py b/homeassistant/components/sensor/vera.py
index c7b95ce5d53..b381974ab31 100644
--- a/homeassistant/components/sensor/vera.py
+++ b/homeassistant/components/sensor/vera.py
@@ -15,7 +15,7 @@ from homeassistant.const import (
     ATTR_BATTERY_LEVEL, ATTR_TRIPPED, ATTR_ARMED, ATTR_LAST_TRIP_TIME,
     TEMP_CELCIUS, TEMP_FAHRENHEIT, EVENT_HOMEASSISTANT_STOP)
 
-REQUIREMENTS = ['pyvera==0.2.2']
+REQUIREMENTS = ['pyvera==0.2.3']
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -56,7 +56,7 @@ def get_devices(hass, config):
 
     vera_sensors = []
     for device in devices:
-        extra_data = device_data.get(device.deviceId, {})
+        extra_data = device_data.get(device.device_id, {})
         exclude = extra_data.get('exclude', False)
 
         if exclude is not True:
@@ -85,18 +85,14 @@ class VeraSensor(Entity):
         self.current_value = ''
         self._temperature_units = None
 
-        self.controller.register(vera_device)
-        self.controller.on(
-            vera_device, self._update_callback)
+        self.controller.register(vera_device, self._update_callback)
 
     def _update_callback(self, _device):
         """ Called by the vera device callback to update state. """
-        _LOGGER.info(
-            'Subscription update for  %s', self.name)
         self.update_ha_state(True)
 
     def __str__(self):
-        return "%s %s %s" % (self.name, self.vera_device.deviceId, self.state)
+        return "%s %s %s" % (self.name, self.vera_device.device_id, self.state)
 
     @property
     def state(self):
@@ -119,18 +115,18 @@ class VeraSensor(Entity):
             attr[ATTR_BATTERY_LEVEL] = self.vera_device.battery_level + '%'
 
         if self.vera_device.is_armable:
-            armed = self.vera_device.refresh_value('Armed')
+            armed = self.vera_device.get_value('Armed')
             attr[ATTR_ARMED] = 'True' if armed == '1' else 'False'
 
         if self.vera_device.is_trippable:
-            last_tripped = self.vera_device.refresh_value('LastTrip')
+            last_tripped = self.vera_device.get_value('LastTrip')
             if last_tripped is not None:
                 utc_time = dt_util.utc_from_timestamp(int(last_tripped))
                 attr[ATTR_LAST_TRIP_TIME] = dt_util.datetime_to_str(
                     utc_time)
             else:
                 attr[ATTR_LAST_TRIP_TIME] = None
-            tripped = self.vera_device.refresh_value('Tripped')
+            tripped = self.vera_device.get_value('Tripped')
             attr[ATTR_TRIPPED] = 'True' if tripped == '1' else 'False'
 
         attr['Vera Device Id'] = self.vera_device.vera_device_id
@@ -143,7 +139,6 @@ class VeraSensor(Entity):
 
     def update(self):
         if self.vera_device.category == "Temperature Sensor":
-            self.vera_device.refresh_value('CurrentTemperature')
             current_temp = self.vera_device.get_value('CurrentTemperature')
             vera_temp_units = self.vera_device.veraController.temperature_units
 
@@ -161,10 +156,9 @@ class VeraSensor(Entity):
 
             self.current_value = current_temp
         elif self.vera_device.category == "Light Sensor":
-            self.vera_device.refresh_value('CurrentLevel')
             self.current_value = self.vera_device.get_value('CurrentLevel')
         elif self.vera_device.category == "Sensor":
-            tripped = self.vera_device.refresh_value('Tripped')
+            tripped = self.vera_device.get_value('Tripped')
             self.current_value = 'Tripped' if tripped == '1' else 'Not Tripped'
         else:
             self.current_value = 'Unknown'
diff --git a/homeassistant/components/sensor/yr.py b/homeassistant/components/sensor/yr.py
index e4003cf7e9c..24f565feb48 100644
--- a/homeassistant/components/sensor/yr.py
+++ b/homeassistant/components/sensor/yr.py
@@ -25,7 +25,7 @@ SENSOR_TYPES = {
     'precipitation': ['Condition', 'mm'],
     'temperature': ['Temperature', '°C'],
     'windSpeed': ['Wind speed', 'm/s'],
-    'pressure': ['Pressure', 'hPa'],
+    'pressure': ['Pressure', 'mbar'],
     'windDirection': ['Wind direction', '°'],
     'humidity': ['Humidity', '%'],
     'fog': ['Fog', '%'],
diff --git a/homeassistant/components/switch/vera.py b/homeassistant/components/switch/vera.py
index 91a83086570..4094fe61f4f 100644
--- a/homeassistant/components/switch/vera.py
+++ b/homeassistant/components/switch/vera.py
@@ -7,19 +7,21 @@ For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/switch.vera/
 """
 import logging
-import time
 from requests.exceptions import RequestException
 import homeassistant.util.dt as dt_util
 
-from homeassistant.helpers.entity import ToggleEntity
+from homeassistant.components.switch import SwitchDevice
+
 from homeassistant.const import (
     ATTR_BATTERY_LEVEL,
     ATTR_TRIPPED,
     ATTR_ARMED,
     ATTR_LAST_TRIP_TIME,
-    EVENT_HOMEASSISTANT_STOP)
+    EVENT_HOMEASSISTANT_STOP,
+    STATE_ON,
+    STATE_OFF)
 
-REQUIREMENTS = ['pyvera==0.2.2']
+REQUIREMENTS = ['pyvera==0.2.3']
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -60,7 +62,7 @@ def get_devices(hass, config):
 
     vera_switches = []
     for device in devices:
-        extra_data = device_data.get(device.deviceId, {})
+        extra_data = device_data.get(device.device_id, {})
         exclude = extra_data.get('exclude', False)
 
         if exclude is not True:
@@ -75,7 +77,7 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
     add_devices(get_devices(hass, config))
 
 
-class VeraSwitch(ToggleEntity):
+class VeraSwitch(SwitchDevice):
     """ Represents a Vera Switch. """
 
     def __init__(self, vera_device, controller, extra_data=None):
@@ -86,19 +88,17 @@ class VeraSwitch(ToggleEntity):
             self._name = self.extra_data.get('name')
         else:
             self._name = self.vera_device.name
-        self.is_on_status = False
-        # for debouncing status check after command is sent
-        self.last_command_send = 0
+        self._state = STATE_OFF
 
-        self.controller.register(vera_device)
-        self.controller.on(
-            vera_device, self._update_callback)
+        self.controller.register(vera_device, self._update_callback)
 
     def _update_callback(self, _device):
         """ Called by the vera device callback to update state. """
-        _LOGGER.info(
-            'Subscription update for  %s', self.name)
-        self.update_ha_state(True)
+        if self.vera_device.is_switched_on():
+            self._state = STATE_ON
+        else:
+            self._state = STATE_OFF
+        self.update_ha_state()
 
     @property
     def name(self):
@@ -113,18 +113,18 @@ class VeraSwitch(ToggleEntity):
             attr[ATTR_BATTERY_LEVEL] = self.vera_device.battery_level + '%'
 
         if self.vera_device.is_armable:
-            armed = self.vera_device.refresh_value('Armed')
+            armed = self.vera_device.get_value('Armed')
             attr[ATTR_ARMED] = 'True' if armed == '1' else 'False'
 
         if self.vera_device.is_trippable:
-            last_tripped = self.vera_device.refresh_value('LastTrip')
+            last_tripped = self.vera_device.get_value('LastTrip')
             if last_tripped is not None:
                 utc_time = dt_util.utc_from_timestamp(int(last_tripped))
                 attr[ATTR_LAST_TRIP_TIME] = dt_util.datetime_to_str(
                     utc_time)
             else:
                 attr[ATTR_LAST_TRIP_TIME] = None
-            tripped = self.vera_device.refresh_value('Tripped')
+            tripped = self.vera_device.get_value('Tripped')
             attr[ATTR_TRIPPED] = 'True' if tripped == '1' else 'False'
 
         attr['Vera Device Id'] = self.vera_device.vera_device_id
@@ -132,14 +132,14 @@ class VeraSwitch(ToggleEntity):
         return attr
 
     def turn_on(self, **kwargs):
-        self.last_command_send = time.time()
         self.vera_device.switch_on()
-        self.is_on_status = True
+        self._state = STATE_ON
+        self.update_ha_state()
 
     def turn_off(self, **kwargs):
-        self.last_command_send = time.time()
         self.vera_device.switch_off()
-        self.is_on_status = False
+        self._state = STATE_OFF
+        self.update_ha_state()
 
     @property
     def should_poll(self):
@@ -149,13 +149,4 @@ class VeraSwitch(ToggleEntity):
     @property
     def is_on(self):
         """ True if device is on. """
-        return self.is_on_status
-
-    def update(self):
-        # We need to debounce the status call after turning switch on or off
-        # because the vera has some lag in updating the device status
-        try:
-            if (self.last_command_send + 5) < time.time():
-                self.is_on_status = self.vera_device.is_switched_on()
-        except RequestException:
-            _LOGGER.warning('Could not update status for %s', self.name)
+        return self._state == STATE_ON
diff --git a/homeassistant/components/switch/wemo.py b/homeassistant/components/switch/wemo.py
index ad21463ea17..ed56305542d 100644
--- a/homeassistant/components/switch/wemo.py
+++ b/homeassistant/components/switch/wemo.py
@@ -12,7 +12,7 @@ from homeassistant.components.switch import SwitchDevice
 from homeassistant.const import (
     STATE_ON, STATE_OFF, STATE_STANDBY, EVENT_HOMEASSISTANT_STOP)
 
-REQUIREMENTS = ['pywemo==0.3.7']
+REQUIREMENTS = ['pywemo==0.3.8']
 _LOGGER = logging.getLogger(__name__)
 
 _WEMO_SUBSCRIPTION_REGISTRY = None
@@ -69,15 +69,14 @@ class WemoSwitch(SwitchDevice):
     def _update_callback(self, _device, _params):
         """ Called by the wemo device callback to update state. """
         _LOGGER.info(
-            'Subscription update for  %s, sevice=%s',
-            self.name, _device)
+            'Subscription update for  %s',
+            _device)
         self.update_ha_state(True)
 
     @property
     def should_poll(self):
-        """ No polling should be needed with subscriptions """
-        # but leave in for initial version in case of issues.
-        return True
+        """ No polling needed with subscriptions """
+        return False
 
     @property
     def unique_id(self):
diff --git a/homeassistant/components/verisure.py b/homeassistant/components/verisure.py
index 5a4d7c7ea99..164835f07c7 100644
--- a/homeassistant/components/verisure.py
+++ b/homeassistant/components/verisure.py
@@ -28,7 +28,7 @@ DISCOVER_SWITCHES = 'verisure.switches'
 DISCOVER_ALARMS = 'verisure.alarm_control_panel'
 
 DEPENDENCIES = ['alarm_control_panel']
-REQUIREMENTS = ['vsure==0.4.3']
+REQUIREMENTS = ['vsure==0.4.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/helpers/__init__.py b/homeassistant/helpers/__init__.py
index 021146d1c32..95dfe7dd65e 100644
--- a/homeassistant/helpers/__init__.py
+++ b/homeassistant/helpers/__init__.py
@@ -36,7 +36,7 @@ def extract_entity_ids(hass, service):
     service_ent_id = service.data[ATTR_ENTITY_ID]
 
     if isinstance(service_ent_id, str):
-        return group.expand_entity_ids(hass, [service_ent_id.lower()])
+        return group.expand_entity_ids(hass, [service_ent_id])
 
     return [ent_id for ent_id in group.expand_entity_ids(hass, service_ent_id)]
 
diff --git a/homeassistant/helpers/service.py b/homeassistant/helpers/service.py
new file mode 100644
index 00000000000..15cfe9b97c6
--- /dev/null
+++ b/homeassistant/helpers/service.py
@@ -0,0 +1,43 @@
+"""Service calling related helpers."""
+import logging
+
+from homeassistant.util import split_entity_id
+from homeassistant.const import ATTR_ENTITY_ID
+
+CONF_SERVICE = 'service'
+CONF_SERVICE_ENTITY_ID = 'entity_id'
+CONF_SERVICE_DATA = 'data'
+
+_LOGGER = logging.getLogger(__name__)
+
+
+def call_from_config(hass, config, blocking=False):
+    """Call a service based on a config hash."""
+    if not isinstance(config, dict) or CONF_SERVICE not in config:
+        _LOGGER.error('Missing key %s: %s', CONF_SERVICE, config)
+        return
+
+    try:
+        domain, service = split_entity_id(config[CONF_SERVICE])
+    except ValueError:
+        _LOGGER.error('Invalid service specified: %s', config[CONF_SERVICE])
+        return
+
+    service_data = config.get(CONF_SERVICE_DATA)
+
+    if service_data is None:
+        service_data = {}
+    elif isinstance(service_data, dict):
+        service_data = dict(service_data)
+    else:
+        _LOGGER.error("%s should be a dictionary", CONF_SERVICE_DATA)
+        service_data = {}
+
+    entity_id = config.get(CONF_SERVICE_ENTITY_ID)
+    if isinstance(entity_id, str):
+        service_data[ATTR_ENTITY_ID] = [ent.strip() for ent in
+                                        entity_id.split(",")]
+    elif entity_id is not None:
+        service_data[ATTR_ENTITY_ID] = entity_id
+
+    hass.services.call(domain, service, service_data, blocking)
diff --git a/requirements_all.txt b/requirements_all.txt
index 5566e67fb9f..f320408f138 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -59,7 +59,7 @@ tellcore-py==1.1.2
 # homeassistant.components.light.vera
 # homeassistant.components.sensor.vera
 # homeassistant.components.switch.vera
-pyvera==0.2.2
+pyvera==0.2.3
 
 # homeassistant.components.wink
 # homeassistant.components.light.wink
@@ -69,7 +69,7 @@ pyvera==0.2.2
 python-wink==0.3.1
 
 # homeassistant.components.media_player.cast
-pychromecast==0.6.13
+pychromecast==0.6.14
 
 # homeassistant.components.media_player.kodi
 jsonrpc-requests==0.1
@@ -135,7 +135,7 @@ python-forecastio==1.3.3
 https://github.com/theolind/pymysensors/archive/d4b809c2167650691058d1e29bfd2c4b1792b4b0.zip#pymysensors==0.3
 
 # homeassistant.components.sensor.openweathermap
-pyowm==2.2.1
+pyowm==2.3.0
 
 # homeassistant.components.sensor.rpi_gpio
 # homeassistant.components.switch.rpi_gpio
@@ -173,7 +173,7 @@ hikvision==0.4
 orvibo==1.1.0
 
 # homeassistant.components.switch.wemo
-pywemo==0.3.7
+pywemo==0.3.8
 
 # homeassistant.components.tellduslive
 tellive-py==0.5.2
@@ -191,7 +191,7 @@ python-nest==2.6.0
 radiotherm==1.2
 
 # homeassistant.components.verisure
-vsure==0.4.3
+vsure==0.4.5
 
 # homeassistant.components.zwave
 pydispatcher==2.0.5
diff --git a/tests/components/sensor/test_yr.py b/tests/components/sensor/test_yr.py
index f58aefbce43..780176dd1b8 100644
--- a/tests/components/sensor/test_yr.py
+++ b/tests/components/sensor/test_yr.py
@@ -4,12 +4,14 @@ tests.components.sensor.test_yr
 
 Tests Yr sensor.
 """
+from datetime import datetime
 from unittest.mock import patch
 
 import pytest
 
 import homeassistant.core as ha
 import homeassistant.components.sensor as sensor
+import homeassistant.util.dt as dt_util
 
 
 @pytest.mark.usefixtures('betamax_session')
@@ -26,14 +28,18 @@ class TestSensorYr:
         self.hass.stop()
 
     def test_default_setup(self, betamax_session):
+        now = datetime(2016, 1, 5, 1, tzinfo=dt_util.UTC)
+
         with patch('homeassistant.components.sensor.yr.requests.Session',
                    return_value=betamax_session):
-            assert sensor.setup(self.hass, {
-                'sensor': {
-                    'platform': 'yr',
-                    'elevation': 0,
-                }
-            })
+            with patch('homeassistant.components.sensor.yr.dt_util.utcnow',
+                       return_value=now):
+                assert sensor.setup(self.hass, {
+                    'sensor': {
+                        'platform': 'yr',
+                        'elevation': 0,
+                    }
+                })
 
         state = self.hass.states.get('sensor.yr_symbol')
 
diff --git a/tests/components/test_alexa.py b/tests/components/test_alexa.py
index 741cfff4bb8..42acf5b3f62 100644
--- a/tests/components/test_alexa.py
+++ b/tests/components/test_alexa.py
@@ -27,12 +27,13 @@ API_URL = "http://127.0.0.1:{}{}".format(SERVER_PORT, alexa.API_ENDPOINT)
 HA_HEADERS = {const.HTTP_HEADER_HA_AUTH: API_PASSWORD}
 
 hass = None
+calls = []
 
 
 @patch('homeassistant.components.http.util.get_local_ip',
        return_value='127.0.0.1')
 def setUpModule(mock_get_local_ip):   # pylint: disable=invalid-name
-    """ Initalizes a Home Assistant server. """
+    """Initalize a Home Assistant server for testing this module."""
     global hass
 
     hass = ha.HomeAssistant()
@@ -42,6 +43,8 @@ def setUpModule(mock_get_local_ip):   # pylint: disable=invalid-name
         {http.DOMAIN: {http.CONF_API_PASSWORD: API_PASSWORD,
          http.CONF_SERVER_PORT: SERVER_PORT}})
 
+    hass.services.register('test', 'alexa', lambda call: calls.append(call))
+
     bootstrap.setup_component(hass, alexa.DOMAIN, {
         'alexa': {
             'intents': {
@@ -61,7 +64,20 @@ def setUpModule(mock_get_local_ip):   # pylint: disable=invalid-name
                 'GetZodiacHoroscopeIntent': {
                     'speech': {
                         'type': 'plaintext',
-                        'text': 'You told us your sign is {{ ZodiacSign }}.'
+                        'text': 'You told us your sign is {{ ZodiacSign }}.',
+                    }
+                },
+                'CallServiceIntent': {
+                    'speech': {
+                        'type': 'plaintext',
+                        'text': 'Service called',
+                    },
+                    'action': {
+                        'service': 'test.alexa',
+                        'data': {
+                            'hello': 1
+                        },
+                        'entity_id': 'switch.test',
                     }
                 }
             }
@@ -231,6 +247,39 @@ class TestAlexa(unittest.TestCase):
         text = req.json().get('response', {}).get('outputSpeech', {}).get('text')
         self.assertEqual('You are both home, you silly', text)
 
+    def test_intent_request_calling_service(self):
+        data = {
+            'version': '1.0',
+            'session': {
+                'new': False,
+                'sessionId': 'amzn1.echo-api.session.0000000-0000-0000-0000-00000000000',
+                'application': {
+                    'applicationId': 'amzn1.echo-sdk-ams.app.000000-d0ed-0000-ad00-000000d00ebe'
+                },
+                'attributes': {},
+                'user': {
+                    'userId': 'amzn1.account.AM3B00000000000000000000000'
+                }
+            },
+            'request': {
+                'type': 'IntentRequest',
+                'requestId': ' amzn1.echo-api.request.0000000-0000-0000-0000-00000000000',
+                'timestamp': '2015-05-13T12:34:56Z',
+                'intent': {
+                    'name': 'CallServiceIntent',
+                }
+            }
+        }
+        call_count = len(calls)
+        req = _req(data)
+        self.assertEqual(200, req.status_code)
+        self.assertEqual(call_count + 1, len(calls))
+        call = calls[-1]
+        self.assertEqual('test', call.domain)
+        self.assertEqual('alexa', call.service)
+        self.assertEqual(['switch.test'], call.data.get('entity_id'))
+        self.assertEqual(1, call.data.get('hello'))
+
     def test_session_ended_request(self):
         data = {
             'version': '1.0',
diff --git a/tests/components/test_init.py b/tests/components/test_init.py
index 4ff334c1b1e..cb170a5c24b 100644
--- a/tests/components/test_init.py
+++ b/tests/components/test_init.py
@@ -6,20 +6,22 @@ Tests core compoments.
 """
 # pylint: disable=protected-access,too-many-public-methods
 import unittest
+from unittest.mock import patch
 
 import homeassistant.core as ha
-import homeassistant.loader as loader
 from homeassistant.const import (
     STATE_ON, STATE_OFF, SERVICE_TURN_ON, SERVICE_TURN_OFF)
 import homeassistant.components as comps
 
+from tests.common import get_test_home_assistant
+
 
 class TestComponentsCore(unittest.TestCase):
     """ Tests homeassistant.components module. """
 
     def setUp(self):  # pylint: disable=invalid-name
         """ Init needed objects. """
-        self.hass = ha.HomeAssistant()
+        self.hass = get_test_home_assistant()
         self.assertTrue(comps.setup(self.hass, {}))
 
         self.hass.states.set('light.Bowl', STATE_ON)
@@ -58,3 +60,24 @@ class TestComponentsCore(unittest.TestCase):
         self.hass.pool.block_till_done()
 
         self.assertEqual(1, len(runs))
+
+    @patch('homeassistant.core.ServiceRegistry.call')
+    def test_turn_on_to_not_block_for_domains_without_service(self, mock_call):
+        self.hass.services.register('light', SERVICE_TURN_ON, lambda x: x)
+
+        # We can't test if our service call results in services being called
+        # because by mocking out the call service method, we mock out all
+        # So we mimick how the service registry calls services
+        service_call = ha.ServiceCall('homeassistant', 'turn_on', {
+            'entity_id': ['light.test', 'sensor.bla', 'light.bla']
+        })
+        self.hass.services._services['homeassistant']['turn_on'](service_call)
+
+        self.assertEqual(2, mock_call.call_count)
+        self.assertEqual(
+            ('light', 'turn_on', {'entity_id': ['light.bla', 'light.test']},
+             True),
+            mock_call.call_args_list[0][0])
+        self.assertEqual(
+            ('sensor', 'turn_on', {'entity_id': ['sensor.bla']}, False),
+            mock_call.call_args_list[1][0])
diff --git a/tests/helpers/test_service.py b/tests/helpers/test_service.py
new file mode 100644
index 00000000000..aa2cab07d0d
--- /dev/null
+++ b/tests/helpers/test_service.py
@@ -0,0 +1,68 @@
+"""
+tests.helpers.test_service
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Test service helpers.
+"""
+import unittest
+from unittest.mock import patch
+
+from homeassistant.const import SERVICE_TURN_ON
+from homeassistant.helpers import service
+
+from tests.common import get_test_home_assistant, mock_service
+
+
+class TestServiceHelpers(unittest.TestCase):
+    """
+    Tests the Home Assistant service helpers.
+    """
+
+    def setUp(self):     # pylint: disable=invalid-name
+        """ things to be run when tests are started. """
+        self.hass = get_test_home_assistant()
+        self.calls = mock_service(self.hass, 'test_domain', 'test_service')
+
+    def tearDown(self):  # pylint: disable=invalid-name
+        """ Stop down stuff we started. """
+        self.hass.stop()
+
+    def test_split_entity_string(self):
+        service.call_from_config(self.hass, {
+            'service': 'test_domain.test_service',
+            'entity_id': 'hello.world, sensor.beer'
+        })
+        self.hass.pool.block_till_done()
+        self.assertEqual(['hello.world', 'sensor.beer'],
+                         self.calls[-1].data.get('entity_id'))
+
+    def test_not_mutate_input(self):
+        orig = {
+            'service': 'test_domain.test_service',
+            'entity_id': 'hello.world, sensor.beer',
+            'data': {
+                'hello': 1,
+            },
+        }
+        service.call_from_config(self.hass, orig)
+        self.hass.pool.block_till_done()
+        self.assertEqual({
+            'service': 'test_domain.test_service',
+            'entity_id': 'hello.world, sensor.beer',
+            'data': {
+                'hello': 1,
+            },
+        }, orig)
+
+    @patch('homeassistant.helpers.service._LOGGER.error')
+    def test_fail_silently_if_no_service(self, mock_log):
+        service.call_from_config(self.hass, None)
+        self.assertEqual(1, mock_log.call_count)
+
+        service.call_from_config(self.hass, {})
+        self.assertEqual(2, mock_log.call_count)
+
+        service.call_from_config(self.hass, {
+            'service': 'invalid'
+        })
+        self.assertEqual(3, mock_log.call_count)