removed const tag from member functions in MDP so that implementations which cache query results are possible
removed const tag from member functions in MDP so that implementations which cache query results are possible


git-svn-id: c57083cae03de9a0803956a3abd65044d17a906b@933 3bbcab3b-a713-480a-a40a-1fdaa183d0c8

abhishekcs/RLFD-Project,trey0/zmdp,abhishekcs/RLFD-Project,trey0/zmdp,abhishekcs/RLFD-Project,abhishekcs/RLFD-Project,trey0/zmdp,abhishekcs/RLFD-Project,trey0/zmdp,trey0/zmdp