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
