Maintenance and improvements

## Maintenance

* Tested with latest jQuery, removed version blocker
* Some documentation improvements
* Removed trailing spaces


## Improvements

* Fake user doesn’t rely on [web service](http://www.roughdraftjs.com/api/) anymore, but through `localUserThesaurus`
* Added `localUsers` in  `roughdraft.thesaurus.json` for `localUserThesaurus`
* Refactored test/ examples

## Soon

Next objective: Propose default configuration that doesn’t require ANY HTTP calls for images, users, text.

Also:
* Build process, linting
* Way to generate inline images automatically w/ SVG