update nalanda_output condition message
Fixes #2676: safe functions for retrieving condition/grade by facility.
Merge pull request #2677 from jamalex/fix_grade_lookup_by_facility

Fixes #2676: safe functions for retrieving condition/grade by facility.
update travis.yml due to breaking changes in the travis build server
update unit mappings to make testing conditions easier
enter $TRAVIS_BUILD_DIR
Teacher can edit students
remove stray settings after True
remove HttpResponseForbidden restriction on editing students (we just
disable the button for them)
oh look, i forgot to prepend test_* to my test names, hence they weren't
being run
change test_teacher_cant_edit_students to test_teacher_can_edit_students
load the protractor image locally rather than through amazon
Now Teacher can see only current unit and grade Unit Tests and Practise Tests
make sure we update the restricted teacher dynamic settings, as they may
change on the fly when running multiple test cases in a row, and we only
read the dynamic settings base class once
Add user_id field to exported CSV data.
Merge pull request #2683 from jamalex/add_user_id_to_csv

Add user_id field to exported CSV data.
Merge pull request #2680 from aronasorman/allow_teacher_edits

Allow teacher edits
in test_exam_unset: make sure we're in the correct grade and unit
Merge branch 'nalanda-rct3' into student_testing_grade_unit_mapping
add the "show": true attribute to grade 3 students