Correct spelling of tumblr and streamline icon fonts

* Corrected spelling of tumbler to tumblr
* Updated Font Awesome to version 4.0.3
* Removed Glyphicons due to duplication with Font Awesome
* Updated Font Awesome selectors to fa fa-[iconname]
* Migrated glyphicon selectors to Font Awesome selectors
* Update Bootstrap to 3.1.1
* Update Less.js to 1.6.3
* Update doctype to HTML5 syntax