Move Timecop.return to global after

spec/acceptance/build_stubbed_spec.rb

@@ -118,8 +118,6 @@ describe "defaulting `created_at`" do
     Timecop.freeze Time.now
   end
 
-  after { Timecop.return }
-
   it "defaults created_at for objects with created_at" do
     build_stubbed(:thing_with_timestamp).created_at.should == Time.now
   end

spec/factory_girl/strategy/stub_spec.rb

@@ -7,7 +7,6 @@ describe FactoryGirl::Strategy::Stub do
 
   context "asking for a result" do
     before { Timecop.freeze(Time.now) }
-    after  { Timecop.return }
     let(:result_instance) do
       define_class("ResultInstance") do
         attr_accessor :id

spec/spec_helper.rb

@@ -20,6 +20,7 @@ RSpec.configure do |config|
   config.include DeclarationMatchers
 
   config.after do
+    Timecop.return
     FactoryGirl.reload
   end
 end