[b]Upstream fixes[/b]

[list]
[*]CoreAudio mixer fixes (No more crash on start)
[*]Channel mapping error (lead to mono playback)
[/list]

[b]PLEX/HT Fixes[/b]
[list]
[*]Refocus MCE when qutting Plex/HT
[*]Fix CEC devices
[/list]