Update CONTRIBUTORS.txt
Fix deadlock
KnobGuiTypes: style
OfxClipInstance: add TODOs
OfxEffectInstance: ignore unsupported stuff
OfxEffectInstance: add warning (TODO: fix it)
update SequenceParsing
Merge branch 'workshop' of https://github.com/MrKepzie/Natron into workshop

Conflicts:
	Global/GitVersion.h
update SequenceParsing
CONTRIBUTORS: add @fPaglia
Curve Widget: allow selection of control points of several curves + fix
some bugs in the keyDragMaxMovement.
I wanted to add scale/rotate/shear capabilities but we would also need
to make sure we don't bypass limits when scaling: 1 keyframe on the
right of another must always remain so and that means we have to do
extensive computations on mouseMoveEvent
Fix a bug in the refreshing of the keyframes tangents: they must be
ordered correctly
Merge branch 'workshop' of https://github.com/MrKepzie/Natron into workshop
CurveWidget: add warning from static analysis
Fix roto selection bug when clicking on a feather bar
Merge branch 'workshop' of https://github.com/MrKepzie/Natron into workshop
Fix unused variable
The application exit has now be implemented: quitting the app will ask
to save any unsaved project and quit everything. The closeProject
handler has been implemented so it keeps the main window alive
Reset correctly the project
Move timeline keyframe markers when moving keyframes in the curve editor