Pull request #1031: CAS-14684
Merge in CASA/casa6 from CAS-14684 to master
* commit '318460f1760e1558914d90b8ed8ab6a854eda9d0':
Add a new test and modify another test to check radii entries Revert the task level catch of the exception as this hides some of the exeptions
Add a try-except block to exit task more gracefully when an exception occurs at gethorizonsephem callm
add more warning messages and another fix to target body name extraction
Fix regular expression for the source name extraction
Pull request #1028: CAS-14732
Merge in CASA/casa6 from CAS-14732 to master
* commit '4367509f637e844d0ace77ea151e165bd67efc38':
moved the check but had to fix stuff as empty string was acceptable at that stage.
move the check for units in starting model to SyntheisisImager
force saving of model image
Throw an exception if model is not in units of Jy/pixel
Fixed an image copy with mask being applied which did not copy the units
