Simplifying examples in readme
updating gitignore
adding motor neuron method
adding default values to connect() & loadData()

and simplifying setup process in README
making neurons return a list

and adding docs back for it
removed outdated and redundant license file
removing unneeded .py files from root
Commits moved into alpha0.5-slarson branch

This reverts commit 41a98cbf478e9e478ea82133af0dc3fd4c34e7ca.
Merge branch 'alpha0.5' of https://github.com/openworm/PyOpenWorm into alpha0.5