Add method to to adjust an existing UILabel to show a FontAwesome icon. Create new imageWithIcon: method and deprecate old one to make the two image creation methods use the same language.
Allow developers to use a custom font as well as FontAwesome font.
Improve the method name and add a demo case to the view controller
Image rendering code takes a UIFont directly instead of a font name.
Merge branch 'fixup'

Conflicts:
	Example/FontAwesome-iOS-Demo/ViewController.m
	FontAwesomeTools/FontAwesome.m