FIX: fixed FX errors in IE
FIX: fixed FX errors in IE

The error's were caused by Microsoft's vendor being MS and the code for
attaching vendor prefix would camelcase and it would end up being Ms.
IE10 and IE11 both support vender-prefixless styles that the FX module
uses so I have removed the need for prefixing in IE and swapped how
prefixing is done on other browsers.

charsleysa/zero