The water type strings were static and therefore passed through
gettextFromC::tr() before main(). One would hope to get a warning
in such a case, but this is not the case.
Therefore, use the QT_TRANSLATE_NOOP macro to register the strings
in Qt's translation system and translate the list when needed.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>