Fixed a problem where if the reduced scoring feature is off you couldn't do anything on the set detail page.
Changed how flags work from ad hock stored comma separated lists to frozen arrays
Initial pass at getting database objects to have a unique id associated to them.  I've gotten it so you can create courses and log in, but haven't started switching everything over.
Merge pull request #368 from goehle/reduce-date-fix

Reduce Scoring Date Fix
Continuing to seperate out ids from names.  Set names can now have spaces.
Merge branch 'develop' of https://github.com/openwebwork/webwork2 into jitar
Trying to make things workf or problem ids, the relationship with problem number is a bear.
You can now create problems and they will be displayed and graded.  So the initial work is done.