turn off debug mode
Update knowl.js from the AIM website -- allows HERE doc version of knowls.

I was going to implement this change myself but this version from AIM
beat me to it, does it better -- and it's the standard distributed version.

There are accompanying changes to knowlLink in PGbasicmacros.pl to
accomodate the new version.
Merge pull request #26 from pstaabp/master

More functionality and bug fixes
fix dbsection typo also fixed by Paul Pearson
Merge branch 'ww2.5.2' of https://github.com/mgage/webwork2-dev into ww2.5.2
Merge branch 'pstaab_ww2.5.2' into ww2.5.2
Merge branch 'ww2.5.2' of https://github.com/mgage/webwork2-dev