use validations framework for create_user script
add line break to error messages
Fix #247: Add alphabetic sorting of participants by using dictsort (https://docs.djangoproject.com/en/dev/ref/templates/builtins/#std:templatefilter-dictsort)
Fix #304: Add confirmation when trying to leave an unsaved FAQ
Fix #277: Disable results link for courses without published votes
Fix: #327 Use evaP colors for export, by adding them as custom colors to xl palette and using these custom colors
Merge pull request #332 from JenniferStamm/five_color_export

Fix: #327 Use evaP colors for export
Results include median grade in addition to average grade.
Added partial changes to django.po.
do not test python 2.6, we don't support it anymore. also, do not test 3.3 and 3.4, this will be moved to another branch.
Merge pull request #322 from JenniferStamm/sort_alphabetically

Fix #247: Add alphabetic sorting of participants by using dictsort
Merge pull request #323 from PFischbeck/unsaved_faq_confirmation

Fix #304: Add confirmation when trying to leave an unsaved FAQ
Merge pull request #331 from janno42/master

removed old migrations from test data
hide also grade if not enough ratings #277
Merge pull request #336 from karyon/test_less_python_versions

do not test python 2.6, 3.3 and 3.4
remove --use-mirrors from pip commands, it's deprecated.
Revert "resizes EvaP logo to Bootstrap navbar height (mobile-ready), ref #317"

This reverts commit 4fa6c6bd1265f798d050bae2aebccf9a39ccc1c6.
fixes #317: set image size to match bar height
Merge pull request #339 from karyon/fix_logo_size

Fix logo size
Merge pull request #329 from kateyy/disable_link_for_unpublished_votes

Fix #277: Disable results link for courses without published votes