Update README.md
Merge branch 'master' of https://github.com/NPSVisionLab/CVAC into devel
Merge branch 'devel' of https://github.com/NPSVisionLab/CVAC into devel

Conflicts:
	README.md
Added DetectorDataArchive class and CVAC_DATADIR env var to easy and some misc changes
Merge branch 'devel' of https://github.com/NPSVisionLab/CVAC into devel

Conflicts:
	src/easy/easy.py
Merge branch 'devel' of https://github.com/NPSVisionLab/CVAC into devel
Added new DetectorDataArchive class and new sandbox functions in the ServiceManager.  Converted BOW and Cascade detector/trainers to use them
fixed problem with number of samples withheld from sample count passed to cascade training
Merge branch 'devel' of https://github.com/sorflex/CVAC into devel
Fixed warning
Now updates version.h.repo if we have a valid .git
Added opencv to prerequisites
removed unused services
small edits before merge
merged