Merge pull request #130 from fritsch/hammer

ActiveAE: Really minor fixes
ActiveAE: fix nav sounds after stopping playback
ActiveAE: sanity check on volume
AE: add parameter wait to drain, dvdplayer wants to wait for the stream to be drained, papayer does not
ActiveAE: fading for streams
ActiveAE: slave streams, fixes
ActiveAE: allow to change resample ratio
ActiveAE: resample fix
ffmpeg: add methods to interface
ActiveAE: use user defined channel layout internally, map to layout of sink
ActiveAE: use correct channel layout for stream, should fix downmix
ActiveAE: fix switching from passthrough to pcm and vice versa
ActiveAE: fix switching from passthrough to pcm and vice versa, grrr
ActiveAE: fixes
AE: Alsa Make Sink blocking again (only intended to work with ActiveAE)