* Fixed compiling issues in client code
Merge branch 'master' into client_get_master_map
 + Added ServerManager::get_ring_as_map()
 + Added test case for ServerManager::get_ch_ring_as_map()
 + Added MasterServer::get_all_master()
 * Rename ServerManager to common/ServerMap
 + Load a full master server map when VsfsRpcClient starts
Merge pull request #36 from vsfs/client_get_master_map

Client gets a full list of master servers when initialize.