fix tests (my error) r=jhopkins (irc)
Merge branch 'bug817762'
Bump v1.1.1
Bug 819081 - Added assignee to requests table. r=dustin
Bug 818953 - Fix request logging. r=dustin
Bug 819505: Support different hardware types and models. r=dustin
Bug 819576 - Store image data in db and verify request data against it.
Add image id to request. Fix image_pxe_configs columns.
Fixed some SQL syntax.
Added missing image_id field to request table schema.
Refactored some where expressions.
Use pxe_config from db rather than from config file.
add /api/device/{id}/state/

This also:
 * adds InMemCache to handle caching
 * moves /state/ and /status/ to lifeguard in the API and handlers.py's
 * renames "Board" to "Device" in runtests.py
Bug 819186: use a DB cronjob instead of scheduled events
Clean up; moved image->pxe_config translation from mozpool to lifeguard.
Updated lifeguard UI for new image interface.
minor fixups from review
Bug 822113: add an API call for state and cache it; r=mcote
Bug 819576 - Use tables for images and images/pxe configs/hardware types. r=dustin
bump to 1.2.0