hotfix(core) assign node.Resolver = path.Resolver

discovered by @mappum and applied at https://github.com/jbenet/go-ipfs/commit/414e20b71e50b65e40883f3ac85f91aa81c1e486

fixing here to address #233

https://github.com/jbenet/go-ipfs/issues/233

core/core.go

@@ -161,7 +161,8 @@ func NewIpfsNode(cfg *config.Config, online bool) (n *IpfsNode, err error) {
 	if err != nil {
 		n.Pinning = pin.NewPinner(n.Datastore, n.DAG)
 	}
-
+        n.Resolver = &path.Resolver{DAG: n.DAG}
+        
 	success = true
 	return n, nil
 }