Fix HTTP not defined.

Thanks to xet7 !

.meteor/packages

@@ -143,3 +143,4 @@ rajit:bootstrap3-datepicker-zh-tw
 staringatlights:fast-render
 spacebars
 georgemccann:meteor-emoji-picker
+jkuester:http

.meteor/versions

@@ -76,6 +76,7 @@ http@1.4.3
 id-map@1.1.0
 idmontie:migrations@1.0.3
 inter-process-messaging@0.1.1
+jkuester:http@2.0.1
 jquery@1.11.11
 kadira:blaze-layout@2.3.0
 kadira:dochead@1.5.0