Feature/rename

This PR adds ability for instructors to rename the deck inline by clicking the title next to the pencil icon, which transforms it to an input. It uses the [jeditable](http://www.appelsiini.net/projects/jeditable) jquery plugin. The reason we wrap it with our own `InlineEditor` class is so that we can swap out the implementation later if necessary.

Note: I included the non-minified version of the jeditable plugin because the documentation was lacking in some areas, and also the project site itself was down for a period of time. It was easier to just read the source. Going forward, I think we should include the *non-minified* source of any library we use locally, for reference if nothing else.

@jazahn review?