Fixes per #35: add semicolon, fix toString bug
remove px from width and height attributes
Fixes #27: data uri images, delete old images
classes first
remove prefixed border-radius properties
remove unnecessary box-shadow properties
fix large button hover bug
Add https info to readme
Merge pull request #37 from joshferrara/master

Add https info to readme
Update README.md
Merge pull request #1 from mdo/master

Update