Adding analysis scripts for plotting k/ca channel properties

Requires https://github.com/OpenSourceBrain/BlueBrainProjectShowcase
cloned locally
Adding ca concentration mediated inhibition to ca_boyle channel

Added initial decaying Ca pool to cell for internal Ca
Changed k/scale value in f gate of ca chan from 5mV to -5mV to make it
an inactivating
Updated axes on Figure2A/B to improve default scaling etc.
Required for last commit
Adding placeholder for Boyle and Cohen 2008 code
Update README.md
Initial version of Boyle & Cohen code
Merge branch 'master' of github.com:openworm/muscle_model

* 'master' of github.com:openworm/muscle_model:
  Update README.md
Merge remote-tracking branch 'upstream/master'

Conflicts:
	NeuroML2/ca_boyle.channel.nml