updated gt theme files

Major updates to the css happened, which we need for the menu to work.
Added font-awesome to webroot
bring in new theme's css

I kept it seperate by placing all their css files in a folder. They are
still making changes to the css.
upgraded the old theme to match the header for the new theme

- included in the new css files in default.ctp
- changed default.ctp to use the new themes header format
- new actionBar template element for the grey actions links
- new mainMenuBar for the main menu links
- deprecated utilityBar, the new theme call the links at the very top
the utility bar