Fix cannot stack under bug
Remove unused functions and re-write  redrawAllViewers().
Also call redrawAllViewers() when changing selection from settings
panel of tracker
Rect: fix intersection condition (r.x1==r.x2 is an empty rectangle)
NodeGuiSerialization: fix initialization order
Image: intersection should not be empty
README: remove bitdeli badge
more code safety
Travis: add coverity run condition
Travis: fix
Bug fix
Merge branch 'workshop' of github.com:MrKepzie/Natron into workshop
fix travis
Move nodes correctly when merging them
Merge branch 'workshop' of github.com:MrKepzie/Natron into workshop
update openfx
fix warnings
ChannelSet: bug fix in dead code...
ChannelSet: remove
Interpolation: help status code analysis
BUg fix