Pull request #1006: CAS-14652
Merge in CASA/casa6 from CAS-14652 to master
* commit 'c1afd3cdfffd0eb580f79162c0d49a22504528af':
deleted casa5 simutil.py
Add New Base Tests for correlator testing. re-use existing tests and add the new 'correlator' options
fix default value of correlator
reorder keyword args to match xml
fixed telescope name
updated xml taper efficiency to match simutil.py
added correlator parameter to casa6 simutil
revert casa5 simutil changes
added new correlator efficiencies to simutil added a new correlator paramter to simalma and simobserve
