Attempt to remove mutex calls from instrumenttrack::processinevent
Instrument track, mixer...
Rebase on master to fix older bugs
Pattern.cpp: Remove unnecessary global locks (improve rt safety)
TrackContainerView: remove unnecessary global locks (improve rt safety)
file_browser: remove unnecessary global locks
visualization_widget: remove unnecessary global locks
InstrumentTrack.h: Remove unneeded includes
Move playhandle-adding to the correct spot so playhandles won't get delayed
Merge pull request #961 from diizy/master-atomic

Improve RT-safety by eliminating some global locks