Add a (not yet working) brian2 version of the barrelcortex example
Use scalar variables for the stimulus (example is still work-in-progress).
Still trying to make the example work (stimuli seem to be ok now)
Slightly more verbose debug output for created synapses.
New version of the barrelcortex example: now working, but standalone gives weird results...
Sort objects into a reproducible order for identical when/order attributes (using their name).
New version of barrelcortex example that does not rely on subgroups for connections and seems to be working fine with standalone.