Add schedule_metadata_update to db layer
Ensure correct simple db interface
Change schedule metadata update api calls and client calls
Remove extra schedule metadata functions in api and client
Remove extra schedule metadata db functions
Update schedule metadata in place instead of multiple db queries
Refactor schedule metadata update in simple db
Merge pull request #74 from ameade/sched_metadata

Update Schedule Metadata API
Merge branch 'master' of git://github.com/rackspace-titan/qonos into validate

Conflicts:
	qonos/api/v1/schedule_metadata.py
	qonos/tests/unit/v1/test_schedule_metadata.py