Pull request #982: CAS-14469
Merge in CASA/casa6 from CAS-14469 to master
* commit 'd76b13ef784d329dbfeaa8d189f4d31ccd9f6f8a':
casaconfig set to 1.4.0 release
updated casaconfig version to 1.4.0.dev7 in build.conf
updated casaconfig version to 1.4.0.dev6 in build.conf
casaconfig to dev5
casaconfig to 1.4.0.dev4
casaconfig 1.4.0.dev3
casaconfig to 1.4.0.dev2