Merge pull request #314 from linkeddata/greenkeeper-rdflib-0.6.1

Update rdflib to version 0.6.1 🚀

Author: nicola

package.json

@@ -43,7 +43,7 @@
     "node-forge": "^0.6.38",
     "node-uuid": "^1.4.3",
     "nomnom": "^1.8.1",
-    "rdflib": "^0.5.0",
+    "rdflib": "^0.6.1",
     "request": "^2.58.0",
     "rimraf": "^2.5.0",
     "solid-ws": "^0.2.2",