Remove polyglot Vim plugin
Use @jasoncodes' Ruby config/plugins in Vim
Add killbg alias
Add .ruby-version, .rbenv-vars and db/structure.sql to gitignore
Change load order of 'shell/*' in fresh

Fixed a PATH issue I was having with the Heroku Toolbelt.
Use @jasoncodes' rbenv shell config
Rename Tmux window back to 'bash' on Vim exit