Update to support CodeKit 2.0

MERGED the Codekit Kickoff SASS Branch - Now both the app.less and
app.scss files compile out to app.css. You choose what you prefer to
use. Default is LESS.

ADDED index.html in the root path of the project, which mirrors the
app/index.html file, so that you can use CodeKit's "Preview" button

ADDED bootstrap-theme.min.scss, bootstrap.min.scss and
font-awesome.min.scss, which are just renamed copies of their CSS
counterparts for the SASS compiler to embed the code into app.css,
rather than @import them.

CHANGED app.min.css to simply app.css. Both app.less and app.scss
compile to this file and will overwrite it based on which you choose to
use.

UPDATED header.kit to reflect the new app.css file reference

UPDATED app.js to remove JSLINT preferences on previous Line 5, in
favor of managing that preference within CodeKit.

UPDATED CodeKit's Project Settings for LESS, SASS, KIT and JS compiling
preferences and output paths

REMOVED codekit.config in favor of CodeKit 2.0's use of the
config.codekit file