Pull request #828: CAS-14345
Merge in CASA/casa6 from CAS-14345 to master
* commit 'd1acbde20e5f9c8232703f5535ff6a2aa47b4169':
Fix docstring issue
using regex partial match (m) instead of full string match (p)
Use TaQL to manipulate MS
use onlyparse mode
Fixed typo CAS-14345 test correction factor directly CAS-14345 add unit test for the fix CAS-14345 mitigate boundary effect of the convolution operation
