matrix now column wise -> no transpose required for uniform setting
refactored matrix (now based on a template to be easier extended)
# some bugfixes in currently unused template function, more implicit casting
# removed mxn support: everything squared now
+ Mat3x3
# scalar from left was missing
# potential bug fixes for font rendering
Merge remote-tracking branch 'remotes/origin/master' into physic

Conflicts:
	src/math/matrix.hpp