Initial cleanup of UBC theme
The b-th root of a feature in mathedit produced no output. Now it produces ^(1/b).
Merge pull request #106 from nandorsieben/develop

The b-th root of a feature in mathedit produced no output. Now it produc...
Merge branch 'develop' of github.com:openwebwork/webwork2 into develop
Fix script lines for mathview (line was being loaded twice).