Added Write All, Play All, etc. automation buttons to generic plugin UI
Merge branch 'plugin-automation'
fixed automation *_all button crash
Merge branch 'plugin-automation'
Merge remote-tracking branch 'upstream/master'
Fix ChannelLeft command in BCF2000 mackie profile
bcf2000: make play button toggle roll
fix up some suboptimal and crash-prone aspects of 7c263f3bc4f3bddd8094c9baecf584503012acc8 from Jeremy Carter