JCR-1863: Create jackrabbit-parent
JCR-1863: Create jackrabbit-parent

Added the parent-project and updated all components to use it.

git-svn-id: 93a7552841ba555a21ad5dc8739eae854af6e0ca@719225 13f79535-47bb-0310-9956-ffa450edef68

apache/jackrabbit-ocm