bluetooth: Reduce priority and do not automatically route audio to other computers
requested to merge jprvita/pulseaudio:for-upstream/do-not-switch-to-bluetooth-computers-on-connect into master
If the user is connecting two computers over Bluetooth they most likely want to use a non-audio feature like file transfer or network sharing. Automatic audio switching in these cases creates a very poor user experience. If the user actually wants to stream audio they can manually select the Bluetooth audio sink or source.