Added input image as background for estimate3d-gui
Added a color parameter to Chilitags::draw
Merge pull request #18 from qbonnard/draw-tag-color

Added a color parameter to Chilitags::draw
bugfix: false is parsed as true

OpenCV's yml parser does not seem to support booleans, so
keep: false
is actually parsed as true. This problem is solved by using integers:
keep: 0
Updated tests for draw's color parameter
[debug] Fix debug display in ReadBits

Hi Quentin ;-)