Update README.md
Merge pull request #2 from grace-/fabmap_sample

Fabmap sample
normal stereo calibration
add om
Merge remote-tracking branch 'origin/master' into fisheye

Conflicts:
	modules/multi_fisheye_calib/apps/main.cpp
update readme
Merge pull request #3 from grace-/fisheye

Fisheye
changes to print help()
Merge remote-tracking branch 'origin/fabmap_sample'

Conflicts:
	modules/fabmap/apps/build_vocab_tree.cc
	modules/ofabmap/apps/fabmap_sample.cpp
Adding the live_fabmap
fixing accidental deletes
Using SURF keypoints instead of STAR