v0.6.6: Better CTags support, more Vim bindings, conform to binstub dir in `gem install`

- Rebuild CTags after every `git pull --rebase`
- Enforce the bindir to be $PWD/bin every time with `gem install`
  in RubyGems config
- Add ,c for configuring ~/.vimrc
- Add ,s for sourcing (reloading) ~/.vimrc in an existing Vim session
- Fix indentation settings for CoffeeScript in Vim
- Fix vim-vroom and add 'Ctrl+W t' for switching tabs in Vim
Remove rbenv and add $JSPATH

Where the fuck does this keep dropping off to?
Add bower completion
Fix issues with git-ship commands

- Abstract update master code to its own alias
- Create a 'sync-unsafe' to merge changes with master rather
  than rebasing, for long-running PRs and feature branches
The $RBPATH is now just the path to global gems
Add git commands for preparing and PRing code.
Alias weechat to `irc` for when we start using it
Add little aliases for Git pull requests.
Change title of vimrc
Add minitest, tmux, ruby-refactoring, autoclose and dispatch to Vim
plugins
Turn word wrap back on in Vim
Open CTags output in a new Vim tab
Consistent alignment in vimrc