devilry_settings.default_settings: Exclude devilry_search from tests.
docs.testsuite: Updated with ``django_test.py``.
docs.testsuite: Added note about ``django_test.py``.
versions: Updated selenium.
vagrant: Fixed - can now run tests with firefox.
devilry_subjectadmin.tests.createnewassignment: Fixed test_breadcrumb.
vagrant: Working and documented.
devilry_developer.settings.log: Set selenium remote_connection log to INFO.

Avoids a lot of unneeded noise.
devilry_developer: Enable devilry_qualifiesforexam.
devilry_qualifiesforexam_approved.summarygenerator: Removed print.
devilry_qualifiesforexam_points: Skeleton (copied and modified from approved).
devilry_qualifiesforexam_points: Basics working.
devilry_qualifiesforexam_points: Check for points.
docs.devilry_qualifiesforexam: Corrected docs for the Status model.
devilry_qualifiesforexam_points: Useful summary message.
devilry_qualifiesforexam_points: Tests.
devilry_qualifiesforexam_points: Spelling.
devilry_qualifiesforexam...PreviewGrid: Show total points.
devilry_qualifiesforexam...PreviewGrid: Commented out total points.
subjectadmin...PeriodOverviewGridBase: Make search field optional.