Change author email address

package.json

@@ -21,7 +21,7 @@
     "draggable",
     "dragndrop"
   ],
-  "author": "Julian Leucker <leuckerj@gmail.com>",
+  "author": "Julian Leucker <leuckeju@commu.teckids.org>",
   "license": "ISC",
   "description": "VueJS Components to move data inside a grid via drag&drop.",
   "main": "src/index.js",