Allow admins to disable magic ref check on upload

Some sites manage to run their repositories in a way that prevents
users from ever being able to create refs/for, refs/drafts or
refs/publish names in a repository. Allow admins on those servers
to disable this (somewhat) expensive check before every upload.

Change-Id: Ibf51f9fa214aa07ec7bae9c40d6ef8ce6265e816

gerrit-server/src/main/java/com/google/gerrit/server/git/GitModule.java

@@ -23,5 +23,6 @@ public class GitModule extends FactoryModule {
     factory(RenameGroupOp.Factory.class);
     factory(MetaDataUpdate.InternalFactory.class);
     bind(MetaDataUpdate.Server.class);
+    bind(ReceiveConfig.class);
   }
 }