catching exception to allow hoc generation of non nml variable mechanisms
added crude unit handling for gmax/permeability inhomogeneous parameters
defined Heaviside(0) as 0.5
adding extra parameters to variable mechanisms
undoing not-so-smart netbeans refactoring
associate extra pars with var vech; display them in the desc string
extra parameters for var mechs now exported to neuron
added info on var mech extra pars to full cell info string
Merge branch 'master' of github.com:NeuralEnsemble/neuroConstruct into fixModVarMech
Merge pull request #42 from NeuralEnsemble/fixModVarMech

Fix mod var mech