add missing facility ids
update condition messages
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
load the protractor image locally rather than through amazon
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 #2684 from learningequality/nalanda-rct3

Nalanda rct3 into central-master