changing getBoundingBox to take output arguments as references rather than pointers
grabcutMaskFromPixels now passes by const reference like the rest of the functions
getBoundingBox modified to take cv_bridge type ... not finished w/ other functions yet
grabcutMaskFromBB now takes cv_bridge arguments
finished making grabcut3d_segmentation consistent wrt how image data is stored/passed. We now use cv_bridge::CvImage as much as possible; conversion to/from ROS image messages or to plain cv::Mat happens only where needed, and as close to the calling function as possible.
updated docs to match UI changes
Merge pull request #3 from SharedAutonomyToolkit/lel_depth_fixes

Lel depth fixes