Merge pull request #914 in CASA/casa from bugfix/CAS-9267 to master
* commit '7e509ac5b46fc7c4f6e6ec989bc937a96e0923b8':
another spelling correction
tweak ia.decimate example and spell correct
add a useful comment as to the origin of the fix CAS-9267 flush newly written beam to disk to avoid confusion if returned image tool isn't closed
Merge pull request #913 in CASA/casa from bugfix/CAS-12363 to master
* commit 'dc59ae962ce2c227c380ca78b1023db4f3e8e5c7':
prevent exceptions after first task call when no write permission, CAS-12363