Add pending implementation of WordSet initialization
Ignore editor swap files in git
Extend the Neuron model with new attributes and testing
Rename Synapse class to WordSynapse
Add the new Synapse class
Extend the synapse model in the Neuron
Remove unused class Synapse
Revert "Rename Synapse class to WordSynapse"

This reverts commit e7b44b93a26f33eadc8f369ec6918bc4ca11273c.