Fixed font splitting issue on iOS, Fixes #1

There is an issue on iOS and potentially other browsers where font made
bold with font-weight that doesn't support being bold is made
"pseudo-bold" by the browser rendering the font a second time offset
from the first.

The following steps taken to fix the splitting issue are explained and
shown here in this imgur album: http://imgur.com/a/BruxU
Merge pull request #2 from MacPhage/master

Fixed font splitting issue on iOS, Fixes #1