Log Message:
Changes 5.2.0:
* Support for Berkeley DB 5.2.
* Support for the newly available replication manager events:
  DB_EVENT_REP_SITE_ADDED, DB_EVENT_REP_SITE_REMOVED,
  DB_EVENT_REP_LOCAL_SITE_REMOVED, DB_EVENT_REP_CONNECT_BROKEN,
  DB_EVENT_REP_CONNECT_ESTD, DB_EVENT_REP_CONNECT_TRY_FAILED,
  DB_EVENT_REP_INIT_DONE.
* New Object: "DB_SITE". Support for all its methods.
* Parameters for "DB_SITE->set_config()": DB_BOOTSTRAP_HELPER,
  DB_GROUP_CREATOR, DB_LEGACY, DB_LOCAL_SITE, DB_REPMGR_PEER.
* Support for some stuff in the new "Dynamic Environment Configuration":
  DB_MEM_LOCK, DB_MEM_LOCKOBJECT, DB_MEM_LOCKER, DB_MEM_LOGID,
  DB_MEM_TRANSACTION, DB_MEM_THREAD.
* Add "bytes" to "DBEnv_memp_stat()".