OAK-2005 - Use separate Lucene index for performing property related queries

-- Consolidate  the property definitions under  `properties` node.
-- Changed the property name for defining the type to `type` from `propertyType`

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1633032 13f79535-47bb-0310-9956-ffa450edef68