Merge pull request #53 from sorflex/devel

fixed symbolic links; changed trainerClient to access cascade trainer
removing Python build process from cmake which should only be for unit tests
removing Python build process from cmake which should only be for unit tests
custom unit tests
putFile improvements
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
Added new DetectorDataArchive class and new sandbox functions in the ServiceManager.  Converted BOW and Cascade detector/trainers to use them