Merge pull request #1139 from rspec/add-where-to-require-comment

Note where to add requires so Rails is loaded.

lib/generators/rspec/install/templates/spec/rails_helper.rb

@@ -3,6 +3,7 @@
 require 'spec_helper'
 require File.expand_path("../../config/environment", __FILE__)
 require 'rspec/rails'
+# Add additional requires below this line. Rails is not loaded until this point!
 
 # Requires supporting ruby files with custom matchers and macros, etc, in
 # spec/support/ and its subdirectories. Files matching `spec/**/*_spec.rb` are