AudioVideo: support build with the FFmpeg library
issue #203
sam: fix return code for sub-commands
close #208
sam-do - Host: adding first-last image
issue #135
adding options to process range(s) or from first and/or last image
Fix a wrong condition in LibAvVideoWriter
tuttleHost: add defines to enable timers and dot graph exports
pyTuttle tests: compute time
pyTuttle: ProcessGraph available in python
Merge branch 'develop' of github.com:tuttleofx/TuttleOFX into develop
Fix range auto-detection #135
Merge branch 'develop' into feature/buildWin7_64

Conflicts:
	libraries/tuttle/src/tuttle/host/ComputeOptions.hpp
	libraries/tuttle/src/tuttle/host/graph/ProcessGraph.cpp
Merge fixes
Merge branch 'feature/buildWin7_64' of https://github.com/tuttleofx/TuttleOFX into feature/buildWin7_64