Fix pixelated font Icons in webkit browsers

Using the SVG version of FA in webkit browsers fixes the display of
pixelated icons.  When putting SVG before all other font types, the
webkit browser (e.g. Chrome) will use it instead of the WOFF version.
However, you should put it after EOT to avoid unexpected side effects in
IE.

So, IE loads EOT, Firefox uses WOFF and Chrome, Opera (15+) and Safari
will use SVG.