Ticket #107 - Initial support for adding textarea support. This means if you include
the "textarea" option and select an element (or pass an ID as a string) it will sync
the textarea with what you see in the editor. This is useful for people who don't
want or need to use AJAX to submit a form. Instead, the textarea will have the exact
contents of the editor.

Only thing left to do is make it work with autosave false. Luckily, the code is
there to make that fairly easy from #195.
Ticket #107 - Added docs for textarea option
Ticket #107 - Empty <code> tag was creating a blank gray box in the GitHub README
Ticket #107 - Textareas are now always in sync even if autoSave is turned off.
Merge in develop
Ticket #107 - Added tests for textarea option
Ticket #107 - Fix broken tests and fix bug with importFile when localStorage is removed while the editor is loaded.