4.0.gemfile in draper-2.0.0

- old
+ new

@@ -1,3 +1,3 @@
 gem "rails", "~> 4.0.0"
-gem "mongoid", github: "mongoid/mongoid"
+gem "mongoid", "~> 4.0"
 gem "devise", "~> 3.0.0"