Async testing v0.50.0a32

• Some remaining bugs fixed in backend (a129)
• Device-remove service deleted, use the device-DELETE button instead
• Auto-joining should now work, it seems to only works a short time after a HA restart or an Integration-reload.
  Be aware, it can take a several minutes before the joining device shows up in HA

Async testing v0.50.0a31

Fix auto-joining, should work now.

Async testing v0.50.0a30

Fix a mistake in the backend, an incoming NodeRejoinResponse from a reset Circle will now be handled correctly.

Async testing v0.50.0a29

Improved fault-propagation.

Async testing v0.50.0a28

• Wait (longer) for a NodeJoinAckResponse for a NodeAddRequest. It's there for v0.40.7, should now also be seen in the async code.
• Improve fault-handling

Async testing v0.50.0a27

Trying a slightly different method for autojoining on/off.

Async testing v0.50.0a26

Adding a DELETE button to every Plugwise device, pressing it should delete it from the Plugwise network and the Integration.
Deleting the Stick and Circle/Stealth + is blocked.

Async testing v0.50.0a25

Backend library improvements, should improve automatic and manual adding of devices.

Async testing v0.50.0a24

Service device-remove is now fully working, including removal from the Integration.

Async testing v0.50.a23

Added:

• Automatic adding of available devices should be working. The device to add must not be linked to a Stick, it needs to be reset.
  This function is default enabled, can be disabled by Integration --> 3 vertical points --> System options --> Turn off the enable newly added entities toggle
• device-remove service is working, removal of removed device from HA integration-view - not yet working (sensors etc. will show as
  unavailable)
• device-add service is partly working. There will be an error after 15 secs and the added device will not show up.
  After a reload the added device should be shown.