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.
This was discussed in the thread "Translations of Math environments in LyX
output for LyX 2.2" at http://www.mail-archive.com/lyx-docs@lists.lyx.org/msg08633.html
and has been reviewed. The problem was that in 2.1, the portuguese translation
was correct in lib/layouttranslations but different in po/pt_PT.po. In fact,
the translation is the same for all three languages spanish, portuguese and
brazilian portuguese.