Markup and styling for theme and Emmet controls
Resurrect fancy_dropdown.js from an older version
Style fancy_dropdown
Plumb theme setting through JS
Add a control for using Vim keybindings
Custom-styled checkboxes
Plumb Vim setting through JS
Styles for cursors in Vim modes
Plumb Emmet control through JS
Refactor setTheme to save setting in localStorage
Retrieve theme setting from localStorage
Refactor Vim and Emmet settings to store in prefs localStorage
Retrieve Vim and Emmet settings on init
Plumb preferences through to UI
Merge branch 'editor-prefs'

Closes #68
Bump Sass to 3.3.0
Pin ffi to 1.9.0, because Heroku
Bump Sass to 3.3.1
Bump Sass to 3.3.2
Bump Sass to 3.3.3