Added Portuguese translation (Thanks to Marco A.G.Pinto)
Merge pull request #890 from emanuelschuetze/translation-pt

Added Portuguese translation
Fixed keyerror on user setting page

Fix #891
Merge pull request #892 from ostcar/issue-891

Fixed keyerror on user setting page
Merge remote-tracking branch 'openslides/stable/1.4.x'

Conflicts:
	AUTHORS