Pull request #906: CAS-14477
Merge in CASA/casa6 from CAS-14477 to master
* commit 'cc9c2bd2403188e1efdd666fb973f56949e06eed':
Remove extra CMake flags for gsl in readme.md for the macOS installation
Revert "Remove GSL flags from the readme.md file."
Remove GSL flags from the readme.md file.
Implement Renauds's patch in CAS-14477
Pull request #902: CAS-14195
Merge in CASA/casa6 from CAS-14195 to master
* commit 'd74c9a0ba4ec491506f98bf594b2710a3258278a':
For CAS-14195, tidy up doc info in fringefit.xml
For CAS-14195, improve inline documentation for corrcomb parameter.
changed np.alltrue to np.all for new test case
For CAS-14195, added combine='spw',concatspws=True tests to Fringefit_corrcomb2 test
For CAS-14195, add new Fringefit_corrcomb2 test class to test new corrcomb modes (requires new dataset in the DR)
For CAS-14195, ensure corrcomb='stokes' and 'parallel' duplicate the combined-poln solution is duplicated to both polarizations within the output caltable (as was done for corrcomb='all' previously).
For CAS-14195, in fringefit task and underlying mechanics, add support for correlation combinations: 'stokes' (which does formal Stokes I combination of parallel hands, strictly respecting flags; formerly 'all') and 'parallel' (which does optimally weighted parallel-hand correlation combination for all available unflagged data)
