[trunk] Change postgis provider for using with postgis 2.0. ( Issue 32850)
[trunk] Change postgis provider for using with postgis 2.0. ( Issue 32850)

git-tfs-id: [https://tfs.codeplex.com/tfs/TFS01]$/SharpMap/Trunk;C98347

SharpMap/SharpMap,nhvu1988/SharpMap,SharpMap/SharpMap,nhvu1988/SharpMap