Remove duplicate state facts in SquashSpec
Merge pull request #454 from ambiata/topic/squash-state-duplicate-facts

Remove duplicate state facts in SquashSpec
Use date hashing instead of entity for ingest
Merge pull request #456 from ambiata/topic/ingest-date-hashing

Use date hashing instead of entity for ingest
Remove extra IntervalReducer specs - not adding any value and flakey
Original MultipleInputs and dependencies.
Patched MultipleInputs to support globs and update SnapshotJob to batch partitions.
Added notes dicussing MultipleInputs patch.
Added extra spec, to test glob resolution on disk.
Fix typos.
Merge pull request #459 from ambiata/topic/multi

Patched MultipleInputs to support globs and update SnapshotJob to batch partitions.
Use index to guarantee uniqueness for virtual features
Merge pull request #457 from ambiata/topic/virtual-unique-featureids

Use index to guarantee uniqueness for virtual features
Better cleanup of temporary files in tests