* ja.po: Update from Koji Yokota
* sv.po: Update from Jim Rotmalm
* zh_TW.po: Update from Mingyi Wu
* fr.po: Update from Jean-Pierre Chretien
fr.po: another update by Jean-Pierre
French EmbeddedObjects.lyx: translations for LyX 2.1 by Jean-Pierre
Forgotten in 0ad02c437e08.
* layouttranslations.review - sk done in multiple commits.
* layouttranslations.review - de seems to be updated at 050c768eef.
* layouttranslations.review - sr done at 9fc888fa65.
* layouttranslations - zh_TW recently checked.
* layouttranslations.review - ja changes in 10d8a929.
* layouttranslations.review - ia updated in 5435701af1.
* layouttranslations.review - da - Note eems to be correct according to 9a3ba796d8f.
* layouttranslations.review - less precise but also less confusing
ia.po - technical error in translatio
* layouttranslations.review - review of all langs.

This list is hard to get exactly, but tried my best according
to git blame & knowledge of translators.
* cs.po
Do not stop on BibTeX errors.

BibTeX errors are still reported via the BibTeX Log dialog, but users are not actively pointed to it.
The feature might be re-enabled in 2.2.
Typo. Sorry.