Merge pull request #291 in CASA/casa6 from CAS-13311 to master
* commit '85a9b942c7c64080a5bd0d44ee893e5cd8e9051a':
CAS-13160 description update according to the suggestion by SsS
CAS-13311 propagate the note on datacolumn from casadocs
CAS-13311 more grammatical change
CAS-13311 sync task description with casadocs