Descriptors saved separately. New test image.
matching by descriptors model file.
mex files
Merge remote-tracking branch 'origin/multi-object' into multi-object

Conflicts:
	match_and_estimate.m
Bug solved from devide_and_compute_daisy. Some naming convenience.
Poor local filter added.
Optimization of matching using kdtree.
Pose estimation exception handled + some settings.
Multi-object recognition implemented.
Some settings & test images changed.
2d and 3d Local filtering implemented with bugs.
Local filtering implemented completely.
Multiple model generation eased.