OAK-1894 PropertyIndex only considers the cost of a single indexed property

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1604744 13f79535-47bb-0310-9956-ffa450edef68
OAK-1894 PropertyIndex only considers the cost of a single indexed property (Removed System.out.println)

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1604748 13f79535-47bb-0310-9956-ffa450edef68