fix(package): update dat-node to version 3.3.2

Closes #12

Author: greenkeeper[bot]

package.json

@@ -7,7 +7,7 @@
   },
   "dependencies": {
     "dat-encoding": "^4.0.2",
-    "dat-node": "^1.3.8",
+    "dat-node": "^3.3.2",
     "debounce": "^1.0.0",
     "debug": "^2.6.1",
     "xtend": "^4.0.1"