If button title is nil, calling addAwesomeIcon:beforeTitle: would make
button title appear as '<icon> (null)'

Respect font size set in xib

Default font should be set in calls to initWithFrame but not
initWithCoder so that font size set in .xib is respected.

Simple fix to addAwesomeIcon:beforeTitle: when title is nil

…ectly from the Website.

Updated the NSString category with the latest icon. A refactor was needed to update easyly the icon values and a better way to convert to FA string from an Enum value in HEX.

Deprecated unnecessary methods. Keeps the backwards compatibility of the Icon names.

The Enum has the same name convention than the CSS file on FA website, but keeps the older names for backward compatibility.

Fixed the Random icon generator in Demo App accordingly to the new enum based icons.

Changed the method to generate random values on the Demo App

Replaced old values with the new ones

Updated TTF file with the latest 4.0.3 version of the FontAwesome refactor enum to use HEX

Updated TTF file and added new values in the FA Icon enum. close jessesquires#26