patch: added font weight property
Merge pull request #16 from bigomega/master

Add font weight property.
Let rotateRatio be a function.
Inkscape does not like quotes in font-family.
Accept an SVG element.
Make drawMask work in SVG.
Support font-weight and color better.
Cleaned up whitespace.
Make tests work on file://.
Currently throws a cross origin security error in Chrome but should be fixed in 31.
Get the full data out of the SVG (if allowed).
Recreated gh-pages.
Save the SVG.