casa

Merge pull request #1133 in CASA/casa from feature/CAS-12696 to master

* commit '6388efd252c02831f38da62f619b55657f91b4b5':
  Adding test_req_task_imhistory.py
  Revert "Added test_req_task_imhistory.py"
  Added test_req_task_imhistory.py