is kept in order, but old namespaces/skills are never culled.
* The active namespace list is synced on a GUIConnection level
* QML display requests now are sent as a list instead of a single entry, i.e.
with "gui_urls" instead of "gui_url". Currently a skill can only send a single
QML, however.
* Change CLI GUI client to handle "gui_urls" instead of "gui_url"
The GUI client built-in to the CLI now has these features:
* Activate/deactivate via Ctrl+G
* GUI 'window' shows active page title and all namespace variables
* Add fool-proof primitive draw(x,y, msg) that takes care of clipping, and padding
Further fleshing out of the GUI mechanisms
* Support for data and page from Mycroft -> GUIConnection
* Add a 'reconnecting' event for the messagebus
* Add MycroftSkill.show_url()
* Plumb MycroftSkill.gui into the messagebus
* Implement MycroftSkill.gui dictionary
CLI extensions for the GUI:
* Can now act as a simple GUIConnection
* Minor revamp of messagebus connection, provides kinder handling when
messagebus isn't found or ready.
* BUGFIX: An empty filter would filter ALL messages
* BUGFIX: Input wider than the screen would cause a crash
* BUGFIX: "filter" or "find" with no param would filer "filter" or find "find"
Steve Penrod