This completes r1530237 where fieldtypepostnew.xml has been removed.
* Removes useless commented out blocks of <group-maps in <delegators definitions
* Removes now useless localpostnew <datasource definition
* Default the result-fetch-size attribute to 50, and comment about older unsupported versions of jdbc drivers

git-svn-id: https://svn.apache.org/repos/asf/ofbiz/trunk@1531269 13f79535-47bb-0310-9956-ffa450edef68