Non 0 0 origin viewboxes break ability to generated icon fonts.

Note: this pull request is for notification and demonstration, the changes result in much larger files. I don't expect a straight merge.

If the `viewBox` doesn't specify a 0 0 origin, when attempting to create an icon font using something like [grunt-webfont](https://github.com/sapegin/grunt-webfont), the resulting icons will be oddly sized and offset making them completely unusable as-is.

The changes are the result of running all the icons through rsvg-convert using a command like:

     for i in *; do rsvg-convert $i -w 2048 -h 2048 -f svg -o `echo $i | sed -e 's/.svg$/_fa.svg/'`; done

 As well as a few search & replaces to clean up the output.

This cleans up the svgs and resets the viewbox to `0 0 2048 2048` and removes the `translate()`s. The resulting svgs are larger and need to be optimized, but work for generating webfonts.