docs

lifecycle events

(cherry picked from commit 131488037e2e47ae6d83db1a49234c0f8a8d72ee)

git-svn-id: https://svn.apache.org/repos/asf/cayenne/main/branches/STABLE-3.1@1448527 13f79535-47bb-0310-9956-ffa450edef68
docs

performance tuning

(cherry picked from commit 89bca29152afc43442ee3c1f6f1a1659bf17d5f0)

git-svn-id: https://svn.apache.org/repos/asf/cayenne/main/branches/STABLE-3.1@1448528 13f79535-47bb-0310-9956-ffa450edef68