Merge branch 'release-v22.1' into develop
Changed Akara MaxServers and MaxRequestsPerServer

MaxServers can be higher.  It's not an issue with memory consumption,
which is an issue with fetches, where a single process leaks memory.

MaxRequestsPerServer can also be higher.  500 is low enough that child
processes with memory leaks get killed soon enough, but higher than
the old value of 100.
Added "moving image" to type conversion keywords.

Hotfix; incremented version patchlevel.
Moved "moving image" above "image" in type configuration
Partial fix for 7491

- Replace "sound recording" with "sound"
Fix for 7494

- Use display/creationdate
Fix for 7491

- Delete sourceResource/type if type not found and default is None
Changed view syncing to speed up save, delete, and backup (#7487)

- Renamed couch._sync_views to couch.sync_views.
- Changed couch._bulk_post_to to not rebuild views.
- Added explicit calls to couch.sync_views where needed.
- Improved error messages for caught exceptions in
  couch.process_deleted_docs.
- Made save_records sync views less often (Every 5K records)
Fix for 7494

- Rever to search/creationdate
Add enrich-type unit tests
Bumped version to v23.0
Merge branch 'release-v23.0'