Add another value change reason which is missing.
See documentation of the enum for differences.
Roto: allow control points editing even if linked to a track
Bug fix when removing a node: clear viewer
Bug fix: Combobox always refresh current index
Add keyboard shortcut for zoom level to 100%, defaults to CTRL + 1
Knob: bug fix that made settings knobs not call knobChanged handler
Backdrop: Font family and color now affect the Name in the header too.
Also added a parameter “Header font size” to control the size of the
font of the Name separately from the backdrop content.
We’re in 2014!
fix most global enums

coding rules rule!
Multidimensional knobs now have new entries in the right click menu to
setKey/removeKey for single dimensions too
Merge branch 'workshop' of https://github.com/MrKepzie/Natron into workshop

Conflicts:
	Engine/Knob.cpp
Merge branch 'workshop' of https://github.com/MrKepzie/Natron into workshop
The Tab dialog now remembers the last choice that was made
Merge branch 'workshop' of github.com:MrKepzie/Natron into workshop
Restore OCIO only once on startup
ViewerGL: zoom with alt + middle button drag
Closes https://github.com/MrKepzie/Natron/issues/281
Missing reasons here
Redraw viewers when clearing all panes
Overlay interaction is now based on the order in the properties bin.
OfxEffectInstance: set mipmaplevel for instanceChanged