Remove interaction event filter in destructor

QT fakes a mouse move when destructing which is
caught by our filter
Move raw pointer usage/delete to RAII in interaction
Set proper source relative X,Y coords on wheel interaction
Fix APPLE -> __APPLE__ def in interaction gui
Merge branch 'master' of git://github.com/jp9000/obs-studio
Merge branch 'master' of github.com:mcoffin/obs-studio