Sections format

Based on the core Topics format, but including aspects of the social course format and other settings.
Based on the core Topics course format, adding the following features:
Hide section 0 when viewing another section
Add a news forum/social forum display under section 0 when viewing the course “home”
Allow the user to swap between showing one topic per page and all topics on the same page.
Developed by Catalyst IT for the University of Canterbury