fix warning

ComputeHash: bug fix

Flag for RC3

Better info widget layout

Update natron icon windows

Make sure backdrops are restored correctly.

Also fixed a crash on exit

Update contributors list for 0.94 and LAST_VERSION

Merge branch 'workshop' of https://github.com/MrKepzie/Natron into wo…

…rkshop

Flag for version 0.93: upload new binaries.