doesn't seem to be helpful for performance
auto direct student to course if he is only attending one course
enable edit email in manage staff
assign tutor options at students page
edit email for user in account management
missions and trainings sort by ascending order
confirmation before delete announcement
email notification when email address has been updated

email will be sent to updated address
Merge branch 'development' of github.com:Coursemology/coursemology.org into dev/raymoond