CAROLINE-1: Adds generic reduce and sapply functions for matrices
CAROLINE-1: Abstract class for metrics added.
CAROLINE-1: Adds some simple metrics and tests.
CAROLINE-1: Factory for metrics added.
CAROLINE-1: Fixed path problems in test.
CAROLINE-1: Small fix on metrics.
CAROLINE-1: cc fix.
CAROLINE-1: Removed extra files, adds logging while computeing metrics, changed metrics compute method signature.
CAROLINE-1: adds metrics computing in main app.
CAROLINE-1: log type fix
CAROLINE-1: Tests runs on old OpenCV versions now.
Merge pull request #94 from it-workshop/wp/CAROLINE-1/1

Wp/caroline 1/1