Name of icons faw instead of fa
Thank you for great work.  
I have one question, why you use "faw" prefix for icons instead of default "fa".  
I have an app where I this image codes( fa-android for example) are parsed from the server and than used in the app, but with "faw" I have to parse and convert icon identifier.  
Maybe you can add some method to convert from default name to the name convention used in you library.

Thank you.
