added instruction to restart webserver
Merge pull request #51 from morenoh149/master

added instruction to restart webserver
Upped fonts and stylesheet to FontAwesome 4.0.0
Removed IE7 support

FontAwesome 4.0.0 dropped IE7 support
Updated fa_icon helpers to use new naming conventions
Bumped version to 4.0.0.0
Fixed missing fa class in README example