Complete restructuring into different parts.

Needs new version of Dotfiles.install, too.
Rework ls alias
Switch (back) to old selecta version for change-branch until git-change-branch script is finished
Add switch for EDITOR to recognize running vim instance and switch between subl and vim
Add bbset alias for setting existing bitbucket remote as quick helper for tests
Add git helper for rewording the last commit
Add vim, tmux, tmuxinator config files
Ignore submodules in vim bundle