Use the enum value from Qt::KeyboardModifiers

This fixes the windows build at least
Properly add libunshiled include dir
Merge remote-tracking branch 'corristo/unshiled-include-fix'
Merge remote-tracking branch 'scrawl/master'
Move NIFStream functions into a cpp file where they belong
NIFStream getUInt should return an unsigned integer
do not crash on exceptions while adding startup scripts
Merge remote-tracking branch 'emperorarthur/nif-fixes'
Fix crash when avcodec_decode_audio4 doesn't return a full frame (Fixes #2088)
Use av_get_default_channel_layout for unknown channel layouts