Pull request #998: CAS-14680
Merge in CASA/casa6 from CAS-14680 to master
* commit '4a06fe991b1059c0f0104081f027d93c01e625a7':
Update mom_creator to use plotutils plot_image
close plot after save to prevent same axes use in tests
Update from imview to plotutils plot_image
Pull request #995: Add unittest expected failure to test_gainCurveVLBA due to data update
Merge in CASA/casa6 from CAS-14701 to master
* commit 'ea626f0b54a6e8d30af156e4b54256c4eb480a7c':
Change expectedFailure to Skip
Add unittest expected failure to test_gainCurveVLBA due to data update
Pull request #997: CAS-14664
Merge in CASA/casa6 from CAS-14664 to master
* commit '41435c9cba30dfdd6848cccf8b9be442d040d2ae':
Removed leftover file
Removed debug printf from cleanup function and specific teardown methods.
Added cleanup method to tearDown()) of testref_base(). Added local class tearDown() when needed. Add a flagbackup=False in the calls to flagdata to avoid the creation of a .ms.flagversions in disk. Added specific removal of new_mask.mask inside test_mask_preserve_input_zero_mask(). The printout of file removal will be removed in the next commit.
