Commit before merge

src/NetConnection/Connection.cpp

src/NetConnection/Connection.h

src/NetConnection/ConnectionFunctionGeneral.cpp

src/NetConnection/ConnectionFunctionGeneral.h

src/NetConnection/ConnectionFunctionIdentity.cpp

src/NetConnection/ConnectionFunctionIdentity.h

src/Neuron/NeuronConstant.cpp

src/Neuron/NeuronConstant.h

src/Neuron/NeuronNeuralNet.h

src/Neuron/NeuronTanh.cpp

src/Neuron/NeuronTanh.h

src/examples/net_test_ode_1.cpp

src/tests/Connection_test.cpp

src/tests/NeuronTanh.cpp