Merge pull request #225 from osgeoweblate/weblate-gtt-project-redmine_gtt

Translations update from OSGeo Weblate

Author: dkastl

config/locales/de.yml

@@ -82,3 +82,5 @@ de:
     modal:
       load: Laden
       cancel: Abbrechen
+  gtt_map_rotate_label: Kartenrotation
+  gtt_map_rotate_info_html: Hold down <code>Shift+Alt</code> and drag the map to rotate.