Fixed bug with scroll bar and PGEditor3
Merge branch 'develop' of https://github.com/openwebwork/webwork2
Added the infrastructure necessary for achievement items.  These are items students will be able to use to
modify some of their homework parameters.

Some other small changes:
- moved all jquery calls into system.template (now that we use bootstrap it breaks everything if you call jquery afterwards)
- changed achievement notificaiton to be a modal popup
- Added more Achievement Items

- Fixed a bug in ProblemSetList and ProblemSetList2 having to do with reduced scoring and checkboxs
- Tweaked the site-navigation css stuff.
Added some basic bootstrap support to math3.  It only provides support for modals and popovers and other elements used by newer features.
Changed ressurection to alter problem seed when ressurecting a hw
Fixed a bug with the math4 transition from tabber to twitter tabs.
Finalized some achievement item stuff and added the appropriate files to modelCourse
Merge branch 'develop' of https://github.com/openwebwork/webwork2 into potions

Conflicts:
	htdocs/themes/math4/math4.css
	htdocs/themes/math4/math4.js
	htdocs/themes/math4/system.template
Missed a conflict on merge
Fixed mistake!
Added a message when you dont have items.  (Small change)
Forgot to include new achievement evaluators
Merge pull request #55 from goehle/potions

Potions