Added a version of CSAConnector for the NEST backend that just passes down the CSA object to PyNEST's CGConnect() function. Weight and delay handling is still missing.
Merge remote branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of https://github.com/jougs/PyNN
implemented native version of FixedTotalNumberConnector
removed assertion line in pyNN.nest.projection._convergent_connect() to enable multapses
Merge remote-tracking branch 'upstream/master'
Added warning if NEST was not compiled with libneurosim.
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.
NEST 2.4 renamed parameter 'type' -> 'node_type'

* For backwards compatibility both 'type' and 'node_type' are ignored
  for now
Merge pull request #316 from obreitwi/master

NEST 2.4 compatibility
Merge pull request #313 from jougs/master

Add optimized CSAConnector iterating connection-sets in NEST
Merge changes from mschmidt87/commit_nest_connectors
Merge branch 'mschmidt87-commit_nest_connectors'