Updated translations.
Fixed comments by norman.
Merge pull request #788 from emanuelschuetze/translations

Updated translations.
Fixed motion pdf and template issues:
- Fixed #790 (Unicode Error while creating motion pdf if motion text contains umlauts and motion is imported from CSV)
- Fixed #742: Added categories and identifier to motion pdf.
- Fixed wrong title order (app title - OpenSlides).
Merge pull request #795 from emanuelschuetze/1.4-fixes2

Some motion (pdf) fixes for 1.4