v2.2.0. Improvement.

- v2.2.0 March 16, 2013
	- Added support for `litcoffee` files
	- Added the ability to customise the compiler optons sent to the
CoffeeScript compiler via the plugin's `compileOptions` config option
	- Dependency upgrades
		-  `coffee-script` from ~1.4.0 to ~1.6.1