Leginon

r17575 matches the raw frame path change in appion DD frame processing

Anchi, do you think this takes into account everything we will encounter:
r17706 does a better job of replacing "leginon" with "frames". It should be able to handle any mix of path components and the only assumption is that only the deepest "leginon" should be replaced in the case of multiple "leginon" dirs in the path. For example, "/aaa/leginon/bbb/leginon/ccc/" will only replace the last "leginon" to become "/aaa/leginon/bbb/frames/ccc".

r17846 makes the environment setting into options so that I could add more

  --method=METHOD       method to transfer, e.g. --method=mv
  --source_path=PATH    Mounted parent path to transfer, e.g.
                        --source_path=/mnt/ddframes