X update version string

X update imports

X update init

qm_utils
  X lst_from_uv == copy to pyuvdata.uvflag
  X flags2waterfall == copy function to uvflag.py
  X _bytes_to_str (I think we stole this from pyuvdata) == repoint to pyuvdata utils
  X _str_to_bytes == repoint to pyuvdata utils
  X collapse == copy to pyuvdata utils, add "collapse" suffix to subfunctions
  X and_rows_cols == copy to uvflag.py

tests
  X uvflag == need to check version strings
  X copy test data files
  X lst_from_uv == copy to pyuvdata.uvflag
  X flags2waterfall == copy function to uvflag.py
  X collapse == copy to pyuvdata utils, add "collapse" suffix to subfunctions, update xrfi calls
  X and_rows_cols == copy to uvflag.py

move HERAData test to hera_cal

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