Merge pull request #86 from openwebwork/hotfix1

Hotfix1
Update math4.css

Addressed bug 2647
Removed some buggy functionality from DateTimePicker.  When selecting a date the function which would set the min date on the other fields was clobbering the time for some reason.
Removed some formatting from bootstrap for math3
Fixed broken disabled buttons.
Starting to make "create new set" work by ajax in library browser 1
Merge branch 'develop' of github.com:openwebwork/webwork2 into develop
Merge branch 'develop' of https://github.com/openwebwork/webwork2 into develop
Merge pull request #102 from aorinevo/develop

changed h2 tag to h1 in math4 theme
Add help link for "levels" in the advanced search page in library browser 1
Merge branch 'develop' of github.com:openwebwork/webwork2 into develop
Merge branch 'develop' of https://github.com/openwebwork/webwork2 into develop
Fix bug when creating sets.
Add Chromatic module to those included in Safe compartment
Merge branch 'develop' of https://github.com/openwebwork/webwork2 into develop
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
update mathjax