fixing bug where if keyframe size is smaller than n_candidates_, graph generation crashes
Updated g2o interface. Temp changes to compile in hydro (PCL stamps broken).
Touch
Touch
Updated findG2O file
Update README.md
Changed for new PCL header.stamp interface
Changed for new PCL header.stamp interface
Merge pull request #4 from ccny-ros-pkg/fix/new-g2o-interface

Fix/new g2o interface
Update README.md
Merge branch 'master' of https://github.com/ccny-ros-pkg/rgbdtools into develop