Bulgarian translation updated by Ivan Cenov (#18309)

git-svn-id: http://svn.redmine.org/redmine@13580 e93f8b46-1217-0410-a6f0-8f06a7374b81
German "label_roadmap_overdue" and "setting_autologin" translation changed by Jan from Planio www.plan.io (#14151)

git-svn-id: http://svn.redmine.org/redmine@13581 e93f8b46-1217-0410-a6f0-8f06a7374b81
German "button_update" translation changed by Alexander Loechel (#18314)

git-svn-id: http://svn.redmine.org/redmine@13582 e93f8b46-1217-0410-a6f0-8f06a7374b81