Remove TODOs
Remove unit testing from the main executable
CMake manages optional deps better
Merge branch 'dev_lwk3' of github.com:lwinkler/markus into dev_lwk3

Conflicts:
	CMakeLists.txt
Manage opt deps in CMake
Merge branch 'master' of github.com:lwinkler/markus into dev_lwk3
Bugfix cmake
Set python as optional dep
automatically compile unit tests if the right lib is present
Added loop param to the file reader
Add a stack to store events to classify in ClassifyEvents
Acquire the stream in VideoProtectorCam
Added logging of pid (deleted by mistake)
Add an absolute event time to events and refactor