Also fixed couple of other issues:
* usage event generation - generate event only when snapshot is created on primary and backed up on secondary
* zoneId was always set to 0 for snapshot.delete event, fixed this.
* Fixed resource_count decrement for manual snapshot deletion
1. manual and recursive snapshot use the same command
2. upgrade from 2.2 beta1 to beta need to execute schema-22beta1to22beta2.sql and data-22beta1to22beta2.sql
3. upgrade from 2.1GA to 2.2GA need to execute schema-21to22.sql and data-21to22.sql
status 7144: resolved fixed