Fixed Grunt-Copy for Font Awesome.

Arrays confused Grunt-Copy…
Updated to Font Awesome 4.0.1.

This commit breaks the site's icons!!
* Removed IE7 CSS as it's not supported anymore.
* Updated related FA files.
FA4: Introduction section
FA4: Projects & Roles

* Updated FA icons.
* Fixed hover color of info boxes.
FA4: Icon class name conversations.
Reordered Dropbox Button
Merge pull request #11 from TheSeg/fa-4.0.1

Updated to Font Awesome 4.0.1