Create a publishable Dockerfile

Change-Id: I35ac2101dd830bf433d4bcd72caabfdb77aa395d
diff --git a/package.json b/package.json
index 428c527..dbe9e07 100755
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "url": "https://github.com/KorAP/Kalamar.git"
   },
   "devDependencies": {
-    "grunt": "^1.0.3",
+    "grunt": "^1.0.4",
     "grunt-contrib-copy": "^1.0.0",
     "grunt-contrib-imagemin": "^3.1.0",
     "grunt-contrib-requirejs": "^1.0.0",