Added A* code
A_star stuff
Actually build config and context. Fixes #10
In plane node rename candidate to box.
Implement new candidate class.
Remove blocking image displays.
Use parameter server for coordinate transformation.
Complete object recognition message.
Cleaning up matching function in main module.
Split up coordinate transformations.
Merge vision-devel branch and resolve conflicts.
Merge branch 'master' into Milestone-3

Conflicts:
	vision/vision_object/src/candidate.cpp
	vision/vision_object/src/candidate.h
	vision/vision_object/src/colorimagedata.cpp
	vision/vision_object/src/main.cpp
	vision/vision_plane/msg/Candidate.msg
	vision/vision_plane/msg/Candidates.msg
	vision/vision_plane/src/vision_plane.cpp