Pull request #665: CAS-13845 Improve performance of tsdimaging
Merge in CASA/casa6 from CAS-13845 to master
* commit '3688deee88c29152da8a97419d4234119af75fe9': CAS-13845 bug fix of ViColumns2 on heterogeneous MS handling CAS-13845 (effectively) revert changes in makeFrequencyConverter CAS-13845 rename symbols for readability CAS-13845 assert telescope name CAS-13845 combine isNewMS() if blocks into one CAS-13845 rename variable for readability CAS-13845 use getRef instead of getRefString for more strict check CAS-13845 simplify the code
Revert "CAS-13845 trivial change to trigger Bamboo builds" CAS-13845 trivial change to trigger Bamboo builds CAS-13845 update casacore reference CAS-13845 make MeasFrame object static to avoid it to be instantiated everytime CAS-13845 avoid using MSColumns CAS-13845 tuning makeFrequencyConverter CAS-13845 more efficient way to obtain frequency type
