add reward point models and a reward point redemption page for students
automatically grant reward points to students when they finished voting for their last course in a semester
added reward points overview per semester for staff
adding pages for editing reward point redemption events
added texts on rewards page and enabled translations
added creating and deleting events; added date picker to form fields
added excel export for reward point redemption events
added infobox text about reward points
added "is_external" to userprofile and updated importer. these users can't use reward points.
updated test data
translations and necessary layout changes
move views into rewards app
move more stuff into rewards app
use signal to tell rewards app that a student evaluated a course
reward points can now be enabled per semester
language updates
cleanup
Merge pull request #419 from janno42/reward_points

Introducing reward points