OAK-672: Avoid JCR APIs calling other JCR APIs
- Simplify value access

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1456026 13f79535-47bb-0310-9956-ffa450edef68
OAK-672: Avoid JCR APIs calling other JCR APIs
- Remove Value and ValueFactory dependencies from Delegate implementations

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1456027 13f79535-47bb-0310-9956-ffa450edef68