Pull request #685: CAS-13889
Merge in CASA/casa6 from CAS-13889 to master
* commit 'ec7f552d739489b1f1357462d5d53978efd006fc': CAS-13889 update casaplotms version in build.conf CAS-13889 update casaplotms version CAS-13889 update reference to casaplotms wheel CAS-13889 update casaplotms version CAS-13889 update reference to casaplotms