Dumping Beliefs is implemented in the BeliefExporter.h file
Update cifar_experiment.py

cifar_experiment.py is modified so as to enable dumping beliefs in to a file.
comments
added ability to reset added and found subtrees from the tree miner.
fixed treemining timeshift to work when bottom layer is not 0.
added VideoWriter class to be able to write videos
fix compile error by linking math lib
removed unused getGrayImageFloat_c1() method from ImageSourceBase.h
improved comments for CifarSource class
re-factored ImageSourceBase to make it simpler.
removed CztMod getFloatFromImg method because it's broken and not used
converted tabs to spaces / formatting.
Added getRGBImageFloat() and supporting methods to ImageSourceBase