Remove non-supported option publish-install

Fix help text of test-languages.sh.
Use "test" instead of publish  for buildlang invocation which can
be used to manually build translated manuals.

Change-Id: I617e8008e78bebc2d4e6c09300606a50d4b37ebc
Imported Translations from Transifex

Change-Id: I6c8eefb17d036a9cd725e4fcf17afca38da5e6b9