* Remove unnecessary exception re-wraps
* Preserve exception chains on re-raise
We slap "from cause" to almost all possible cases here. In some cases it
could conceivably be better to do "from None" if we really want to hide
the cause. However those should be in the minority, and "from cause"
should be an improvement over the corresponding raise without a "from"
in all cases anyway.
The only case where we raise from None here is in plex, where the
exception for an original invalid SSL cert is not the root cause for
failure to validate a newly fetched one.
Follow local convention on exception variable names if there is a
consistent one, otherwise `err` to match with majority of codebase.
* Fix mistaken re-wrap in homematicip_cloud/hap.py
Missed the difference between HmipConnectionError and
HmipcConnectionError.
* Do not hide original error on plex new cert validation error
Original is not the cause for the new one, but showing old in the
traceback is useful nevertheless.
* Improve unifi device tracker performance
The unifi websocket sends an update every second
which generates a significant amount of state
changed updates.
Avoid creating callback functions when they
are not going to be used.
* make _no_heartbeat/_make_disconnected instance methods
* remove extra empty line
* revert is_wired change
* remove extra line
* Async remove call removed too much, resulting in disabled entities coming back after a restart
* Calling super().async_remove is no longer needed, changed to self.async_remove
* Yes, they should be sets...
* Improve client tracker to be more comprehensible and streamlined
Improve block switches
Improve tests
* Small clean up
* Add descriptions on ssid test
* Improve test
* Make polling default off, only POE clients left to verify
* Minor improvements
* On removal cancel scheduled updates
* POE works without polling now
* Combine else and if to an elif