Merge pull request #1033 in CASA/casa from CAS-12459 to master
* commit 'c06e6201383904dd3325600485ae8853b095e506': CAS-12459. Edited a few words in the inline documentation
changed perchanweightdensity default to True
Merge pull request #1030 in CASA/casa from CAS-12551 to master
* commit '24291b883d6257971711090e3c6c39dccdee2af7':
update casacore pointer to get RegionManager leak fixes, CAS-12551