* Fixed a slight issue with Google Analytics and defined variables.
* Moved the background image upload and parameters from General Settings to the page with the color pickers since it is part of the background colors.
* Added a box styling to all main content including in-course activity pages. This should have been done before releasing. From the homepage to the course page everything was inside a styled box... until you went to an activity and then the box went away. There is now a color picker for the box that wraps activities.
* Numerous CSS fixes and enhancements.