Fixed a bug where gateway answer prefixes were being rendered by mathjax
Fixed a bug where long descritpions dont wrap on the homework sets editor 2 page and some gateways didn't have their descriptoins shown.
Upgraded the upgrade checker a little bit so that it always does its current checks against your current branch, no matter what it is called.
Changed the default display mode in localOverrides.conf.dist to MathJax.  It wont affect existing localOverrides files of course, and it is time to move new systems over to MathJax by default.
Fixed some more bugs with upgrade detection
Removed some left over warns
More upgrade notifier  regexp upgrade!
Added git to check_modules
Fixed what look like unintended changes to localOverrides.conf.dist
Added a die message about not having the right $problemLibrar{root} to the upgrade checker.  This is useful because it has changed in localOverrides.conf.dist.
Merge pull request #524 from goehle/2.10-bugfixes

2.10 bugfixes