[AE/CA] - on device change reinit coreaudio by calling opencoreaudio with the last engine parameters (this will fallback to default device when our current output device vanishes and on the other hand will go back to that device if it re-appears).
[AE/CA] - revert 7e6433169c93abd22e28a828fa024cf744fe5e86 - not needed anymore
Merge pull request #2144 from Memphiz/canotify

[AE/CA] - add and handle devicechange notification