Add members: create specs, clean up, use ol, add spec/debug tools

While trying to create a feature spec for adding members, I had to cleanup a few things.  Let's go through this together.

Move welcome stuff to game.
Changed the member list to use ol/li.
I added jslint, to identify js syntax issues (`rake js:lint`).  This will be run automatically when you use `rake`.
Added rails_footnotes, better_errors, and spec tools.