def syncup(self, localdir = '', remotedir = '', deleteremote = False):
        ''' Usage: syncup [localdir] [remotedir] [deleteremote] - \
sync up from the local directory to the remote directory
  localdir - the local directory to sync from if not specified, it defaults to the current directory.
  remotedir - the remote directory at Baidu Yun (after app's directory) to sync to. \