Require AsyncIterator 1.1.

Restores support for OPTIONAL.

Author: RubenVerborgh

package.json

@@ -24,7 +24,7 @@
     "browserify": "browserify browser.js -u stream -o ldf-client-browser.js"
   },
   "dependencies": {
-    "asynciterator": "^1.0.0",
+    "asynciterator": "^1.1.0",
     "follow-redirects": "^0.2.0",
     "lodash": "~2.4.1",
     "lru-cache": "^4.0.1",