Big update.  Lots of stuff here.
- Added note icons to the course/module/video listing index page
- Updated the toTime() function to properly handle courses running in to the hours
- Updated the index page to display the times on courses, not just modules and videos.
- Misc. bugfixing.
- Added a play to end of module checkbox on the video screen, which will automatically go to the next video in the module when the current video finishes.
- other stuff!