update to latest graphiql

Author: leebyron

package.json

@@ -51,7 +51,7 @@
     "raw-body": "~2.1.2"
   },
   "peerDependencies": {
-    "graphql": "~0.4.5"
+    "graphql": "~0.4.7"
   },
   "devDependencies": {
     "babel": "5.8.21",

src/renderGraphiQL.js

@@ -11,7 +11,7 @@
 type GraphiQLData = { query: ?string, variables: ?Object, result?: Object };
 
 // Current latest version of GraphiQL.
-var GRAPHIQL_VERSION = '0.2.4';
+var GRAPHIQL_VERSION = '0.3.1';
 
 /**
  * When express-graphql receives a request which does not Accept JSON, but does