fund: fix request caching

Author: kemitchell

lib/support.js

@@ -150,14 +150,18 @@ function downloadSupportData (supportablePackages, cb) {
     var cached = cache.get(url)
     if (cached) {
       return setImmediate(function () {
-        cb(null, {cached: true}, cached)
+        cb(null, { cached: true }, cached)
       })
     }
     simpleGet.concat({
       url: url,
       json: true,
       headers: headers
-    }, cb)
+    }, function (err, response, data) {
+      if (err) return cb(err)
+      cache.set(url, data)
+      cb(null, response, data)
+    })
   }
 }