network factory added
NetworkFactory revised
changed datahandling inside network factory

removed setArchitecture
coding style changes
Merge branch 'master' into NetworkFactory

Conflicts:
	quickprop/quickpropneuronlink.cpp
	tests/networktest.cpp
Merge branch 'master' into NetworkFactory

Conflicts:
	backprop/backpropnetwork.cpp
	backprop/tests/backproptest.cpp
	quickprop/quickpropnetwork.cpp
	quickprop/quickpropnetwork.h
	quickprop/quickpropneuronlink.cpp
	quickprop/tests/quickproptest.cpp
Merge pull request #4 from emmanuel099/NetworkFactory

Network factory
move tests
Merge branch 'master' into rprop

Conflicts:
	CMakeLists.txt
added rprop+, rprop-, irprop+ and irprop- neuron links

modified sgn (compare to zero)

added sgn test