GitLab

- needs testing

- this change is in origin/master now

- doesn't work right yet for margo tests

- just does software build right now, does not include job script

- consistent with theta emails now for mail filter consistency

- gets ofi pingpong test running correctly again
- also commentted out some extra diagnostic runs for now

- use fork of mercury
- set run time option to prevent it from blocking (or initializing cci
  in a way that allows blocking)
- re-enable HG_Finalize calls in tests

suggested by Howard Pritchard to avoid potential conflicts with mpich