More detailed index descriptions in preparation for networks imported from multiple databases

(now importing from both mmlivedb1 and mmdevdb1)
Import all requested 880 and Ontario networks from mmdevdb1

Victorville networks have to come later when we know the right cid for
them
Update index with newly imported mmdevdb1 networks
Auto-format all JSON files
Move EnKF-specific paramters to EnKFParams record

Also expand "FeedType" into three independent booleans: pems, probe a,
probe b
Add probability threshold for accepting PIFed probe measurements
Rename EnKFParams -> EnKFConfig
Re-export MM networks with new RunConfig
Remove SensorSet spec from RunConfig
Make SensorSet a separate JSON in JSON-based scenarios
Move SensorSet into separate JSON file from RunConfig
Bug fix
Merge pull request #51 from andrewbts/refactor-run-config

Refactor run config