fix(package): update body-parser to version 1.19.0

Closes #16

Author: greenkeeper[bot]

package.json

@@ -6,7 +6,7 @@
     "start": "node ./bin/www"
   },
   "dependencies": {
-    "body-parser": "~1.17.1",
+    "body-parser": "~1.19.0",
     "cookie-parser": "~1.4.3",
     "debug": "~2.6.2",
     "ejs": "~2.5.2",