update pt_BR freeze 1.2.3
Merge pull request #289 from guitorri/darktable-1.2.x

update pt_BR freeze 1.2.3
[l10n] Swedish update: Update all strings for next release
Updated Danish translation to 1.2.x branch
Merge pull request #291 from pryds/darktable-1.2.x

Updated Danish translation
[l10n] Shorten 2 strings in de.po