docs

lifecycle events

git-svn-id: https://svn.apache.org/repos/asf/cayenne/main/trunk@1448525 13f79535-47bb-0310-9956-ffa450edef68
docs

performance tuning

git-svn-id: https://svn.apache.org/repos/asf/cayenne/main/trunk@1448526 13f79535-47bb-0310-9956-ffa450edef68