1) Fixed issue in baseneuron and LeakyIAF which causes
code to fail on first run in certain cases.
2) Updated docstring of neuron_class to specify the
property is not currently used.
1) Fixed issue that caused incorrect memory access
   in baseneuron.py and LeakyIAF.py while updating
   current
2) Changed lamina configuration files in light of
   earlier changes made to how neurons and synapses
   are loaded by LPU.py
Merge branch 'master' of https://github.com/neurokernel/neurokernel