Fix grammar error in German translation
Merge pull request #421 from arpemedia/dev

Fix grammar error in German translation
Set headers in js and go files to X-Csrf-Token
Merge pull request #423 from m0sth8/fix-xcsrf-token

Set headers in js and go files to X-Csrf-Token
Fix #425
Merge branch 'dev' of github.com:gogits/gogs into dev