+ VSFSRpcClient::create_index()
 * make old g++ happy
 + Added simple test for create_index call
 * Check the existence of the root path, and check whether it is a
 directory, before creating an index
 * Appropriately set the mode of creating file and mkdir
 * recover configure.ac
 * Fixed the form of file mode
 + Added remove index in MasterController
 + Reconstruct the logic of create_index
 + Added remove_index
 + Added roll back for VsfsRpcClient
 - remove untrue TODOs
 - delee creating partition path
 * treat partition a file
Merge pull request #46 from vsfs/client_create_index

Add VSFSRpcClient::create_index()