matrix implementation
matrix implementation
implemented backprop matrix version

adjusted neuronmatrix and neuronlinkmatrix

added tests
return error values by reference
Merge branch 'master' into matrix
added a xor test with shortcut connections (2-1-1)
weights by reference in neuronlinkmatrix
Merge branch 'matrix' of github.com:emmanuel099/cann into matrix

Conflicts:
	CMakeLists.txt
	neuronlinkmatrix.h
	neuronmatrix.cpp
	neuronmatrix.h
Fixed some fails from last merge
Merge branch 'master' into matrix
removed is equal check in set intput values
cleanups in matrix tests
change calculate error values, instead of returning the computed values, we pass it on by reference

some performance improvements
speed up
Merge branch 'master' into matrix

Conflicts:
	neuron.h
	neuronlayer.cpp
Merge branch 'master' into matrix
Merge branch 'master' into matrix

Conflicts:
	CMakeLists.txt
made matrix network work again
added noalias and momentum term
added a parameters class to avoid code duplication

provides:
setParameter, getParameter, virtual onNetworkParametersChanged and setNetworkParameters