Prefer this version for a working version.
Merge branch 'develop' of github.com:openwebwork/webwork2 into develop

Conflicts:
	conf/webwork.apache-config
Removing jsmath, tth, asciimath, latexmathml, latex2html
Mostly updating to current defaults.config file.
Allow setting/changing of the 3 basic library tags by drop down menus in the library browser and on problem pages.
Make sure button press returns false so page does not reload.
Merge pull request #32 from jwj61/tagediting

Tag editing