Update Note
0.2 updated the function names from VLFeat.
0.1.5 VLmvg() - changed the visibility map parameter to be optional.
0.1.4 a few debugging and improvements. new functions added: demo_vlmvg, generate_feature_track, etc.
0.1.3 align_scene() - added optional parameters for the reference frame.
0.1.2 some debugging, ordering of T and Omega for VLmvg, bundle_euclid, and other functions.