fix: use async/setImmediate

package.json

@@ -30,18 +30,19 @@
   },
   "homepage": "https://github.com/libp2p/js-ipfs-railing",
   "devDependencies": {
-    "aegir": "^11.0.1",
+    "aegir": "^11.0.2",
     "chai": "^3.5.0",
-    "libp2p-swarm": "~0.28.0",
-    "libp2p-tcp": "~0.10.0",
+    "libp2p-swarm": "~0.29.1",
+    "libp2p-tcp": "~0.10.1",
     "pre-commit": "^1.2.2"
   },
   "dependencies": {
-    "debug": "^2.6.3",
+    "async": "^2.4.0",
+    "debug": "^2.6.8",
     "lodash": "^4.17.4",
     "multiaddr": "^2.3.0",
-    "peer-id": "~0.8.6",
-    "peer-info": "~0.9.0"
+    "peer-id": "~0.8.7",
+    "peer-info": "~0.9.2"
   },
   "pre-commit": [
     "lint",
@@ -55,4 +56,4 @@
     "Nuno Nogueira <nunofmn@gmail.com>",
     "Richard Littauer <richard.littauer@gmail.com>"
   ]
-}
+}

src/index.js

@@ -6,6 +6,7 @@ const multiaddr = require('multiaddr')
 const EventEmitter = require('events').EventEmitter
 const debug = require('debug')
 const includes = require('lodash/includes')
+const setImmediate = require('async/setImmediate')
 
 const log = debug('libp2p:railing')
 log.error = debug('libp2p:railing:error')