Health data service tests.
Merge branch 'develop' of https://github.com/Sage-Bionetworks/BridgePF into develop
cleanup
Tests of date-based queries
Adding comment about addition of medication tracker for tests
Cleanup
Switch back to slf4j logger
More clean-up. Better JS packages, some routing for trackers (may or may not use this), better HD, date-based query.
Cleanup. Moving everything to separate files, for example, out of app.js. Creating folder for services and directives. And so forth.
Updating to Eric's config changes
Merge pull request #23 from alxdarksage/develop

Health data API tests. Health data API done.