- Added a note to PersistentObject 1.5 design: ezcPersistentIdentityMap should   actually be an interface and our initial implementation should implement this   one.
- Added a note to PersistentObject 1.5 design: ezcPersistentIdentityMap should
  actually be an interface and our initial implementation should implement this
  one.



zetacomponents/PersistentObject