Require capybara after rspec/rails/example

Otherwise Capybara's includes are not set correctly.

Fixes rspec#360

Author: be9

lib/rspec/rails.rb

@@ -15,3 +15,17 @@
 require 'rspec/rails/browser_simulators'
 require 'rspec/rails/example'
 
+begin
+  require 'capybara/rspec'
+rescue LoadError
+end
+
+begin
+  require 'capybara/rails'
+rescue LoadError
+end
+
+begin
+  require 'webrat'
+rescue LoadError
+end

lib/rspec/rails/browser_simulators.rb

@@ -1,18 +1,3 @@
-begin
-  require 'capybara/rspec'
-rescue LoadError
-end
-
-begin
-  require 'capybara/rails'
-rescue LoadError
-end
-
-begin
-  require 'webrat'
-rescue LoadError
-end
-
 module RSpec
   module Rails
     module BrowserSimulators