Bluetooth headphones do not connect and system reported following error:

Failed br-connection-profile-unavailable

This error occurred on two machines running Excalibur.   

Installing pulseaudio-module-bluetooth fixed the problem on both of the machines.

Please make `pulseaudio-module-bluetooth` a dependency package for `bluez` so `pulseaudio-module-bluetooth` gets installed by default whevever bluez or other bluetooth tool is installed.