rackerlabs/stacktach — pull request #131 by anujm (2013-06-24 14:34:34+00:00)
Title: Converted migration to South data migration

- Converted migration to South data migration
- Changed the way exists were being updated
- Removed ComputeUpdateInstanceNotification
- Removed the redundant import
- Ensured that exists events are considered when populating rawdata but not while populating instanceusages