Fix error when a non-logged in user tries to access the list of courses he is involved in.
Give a 404 when we cannot find the folder in the first place.
forum email rendering update
Merge branch 'development' of github.com:Coursemology/coursemology.org into dev/raymoond_dev
Merge branch 'development' of github.com:Coursemology/coursemology.org into Deploy