initial sleep schema, models & tests #2
Merge branch 'master' into db
sleep rest api with basic (success-case) tests #2
added env vars, diff db for testing, grunt task for tests
Merge branch 'master' into db

Conflicts:
	Gruntfile.js
	package.json
started building out a minimal angular front end for the sleep module (works)
copy html files to dist when building
express static serve dist. also fix db to use fallback
added serve task to grunt
Merge branch 'master' into db

Conflicts:
	backend/router.js
	package.json
	server.js