Move test sessions out of spec helper

spec/rack_test_spec.rb

@@ -1,5 +1,9 @@
 require 'spec_helper'
 
+module TestSessions
+  RackTest = Capybara::Session.new(:rack_test, TestApp)
+end
+
 Capybara::SpecHelper.run_specs TestSessions::RackTest, "RackTest", :skip => [
   :js,
   :screenshot,

spec/selenium_spec.rb

@@ -1,5 +1,9 @@
 require 'spec_helper'
 
+module TestSessions
+  Selenium = Capybara::Session.new(:selenium, TestApp)
+end
+
 Capybara::SpecHelper.run_specs TestSessions::Selenium, "selenium", :skip => [
   :response_headers,
   :status_code,

spec/spec_helper.rb

@@ -1,6 +1 @@
 require 'capybara/spec/spec_helper'
-
-module TestSessions
-  RackTest = Capybara::Session.new(:rack_test, TestApp)
-  Selenium = Capybara::Session.new(:selenium, TestApp)
-end