Moved LocalStorage.js to utils
Refactored messages.
Now Message class is available under utils/Message.js
API is pretty simple:
__init__: pass here an initial parent DOM jquery element, if no one  specified - $(document) will be  used.
showMessage and hideMessage: purposes are obvious.

To enable messages working you will need to add to fest template this line somewhere:
<fest:include context="json" src="./_message.xml" />

_message.xml is stored in templates/ directory.

Also pulled out browser checking via Modernizr into separate object in utils/BrowserCheck.js
Implemented ability to add buttons to message.
Added message for closing validation.
Added the close confirm message to editor. Closes #63
Merge branch 'master' of https://github.com/tech-team/no-turning-back
Merge branch 'messages'