add jquery.timeago lib
add studentInvites
add tokens
add token handler
make all fields in User nullable
refactor link students to always use User

if user is not registered, new User is created
user saves emails in lower case

this should prevent duplicates on case sensitive storage if we ever use any
mailer takes name and address separately
add registration and login forms
distinct error message if user does not have pwd
redirect from login if user is not registered
update videoView
add development strip background
update video view, add video events, js endpoint