User configurable font choice. Fixes #351
use angular.element instead of jquery
new option for overriding font size
Helpers for class styling

Implement our own helpers for getting and setting class styles instead
of using jquery functions, since we are getting rid of jquery
Use crossbrowser compatible attr. names
Make it pretty
Merge pull request #352 from glowing-bear/fontchoice

User configurable font choice. Fixes #351