Save out identity in properties
Identity builder helper
Mark columns as identity when creating from space
And a drop test
Update test
Restore one sequence per table behavior, update AISDumper to clean up sequence names
merge nwilliams: Save and restore column level identity information in entity.json.

https://code.launchpad.net/~nwilliams/akiban-server/entity-json-generated-property/+merge/160486