Merge pull request #546 in CASA/casa6 from CAS-13707 to master
* commit 'cc589098bbb552bfc489f0b22015738f32325fdc':
Removed left-over is_casa6 variable usage.
Bumped the numbers to get viewer, plotms and almatasks wheels.
Updated README.md for runtest.py, which is unrelated to this branch, but a good opportunity to keep it up-to-date.
Fixed component json file
Renamed all tasks tests to follow the new naming convention.
Removed casa5 code from test script.
Replace the cleanup function with tearDown when relevant
Replace the cleanup method with a tearDownClass in the relevant cases
Removed remaining casa5 code
Removed casa5 code
Removed casa5 code from test script. Fixed a variable that was referenced but not defined anywhere.
Removed casa5 related code from test scripts.
Removed casa5 code
Removed casa5 code from scripts
Removed casa5 code from scripts
Removed casa5-related code from the test scripts.
