Adds the directory structure to link to the hardware PyNN submodule
working link to hardware PyNN backend. Clean implementation.
add new line at the end of file
Merge pull request #314 from JoelChavas/include_hardware_submodule

Include hardware backend as a link to the actual backend
removed wrong import of FixedProbabilityConnector
Merge https://github.com/NeuralEnsemble/PyNN
implemented weight/delay parameter transformation for random distributions which are forwarded to NEST
fixed conflict in projections.py