-also merge strings translated in 2.2.3 but not master (only affects ar.po, ia.po, pt_BR.po and sv.po) as a service for your translators
- some translations for de.po
This is a complete remerge of strings (done with cmake) except for fr.po and
sv.po. Those files had already been remerged after the last string changes,
but they use a different sorting, so I did not want to produce an unneeded
diff.
The differences in the comment lines are a well known problem we have: The
last remerge was done on windows, mine was done on linux.
