plotting.py modified to make it accept numpy arrays
test_randomness.py added in examples
comments added
wording changes to make it PEP8 compliant. matrix -> array in plotting. First changes in test_randomness.py
test_randomness renamed connections. Writing connections.py to allow the testing of several connectors
pep8 changes
Loop over connector types implemented in examples/connections.py. I loop over all connector types, except the SmallWorldConnector, the CSAConnector, the FixedNumberPostConnector.
Merge branch 'master' into numpy_array_plotting
Merge pull request #315 from JoelChavas/numpy_array_plotting

plotting.py modified to make it accept numpy arrays