Merge pull request #11 from ipfs/update-deps

chore: require 0.15.2 of ipld-dag-pb to have name memoisation

Author: achingbrain

package.json

@@ -41,8 +41,8 @@
     "detect-node": "^2.0.4",
     "dirty-chai": "^2.0.1",
     "ipfs-unixfs-importer": "~0.37.1",
-    "ipld": "~0.20.0",
-    "ipld-dag-pb": "~0.15.0",
+    "ipld": "~0.20.2",
+    "ipld-dag-pb": "~0.15.2",
     "pull-pushable": "^2.2.0",
     "pull-stream-to-stream": "^1.3.4",
     "pull-zip": "^2.0.1",