* Started to address global namespace pollution - mostly done.
* Fixed a bug where pie chart percentages weren’t displaying correctly (One of the percents would be pushed to the boarder of the pie chart).
* Now you can press escape to exit an add/edit screen.
* Now you can press enter to save on an add/edit screen.

git-svn-id: https://plugins.svn.wordpress.org/an-gradebook/trunk@885161 b8457f37-d9ea-0310-8a92-e5e31aec5664