add the ability to install a cucumber helper

README.md

@@ -19,6 +19,12 @@ require 'persistent_selenium/driver'
 Capybara.default_driver = :persistent_selenium
 ```
 
+If you're using Cucumber, you can also install that hook:
+
+``` bash
+persistent_selenium install
+```
+
 Should work just the same as if you used the standard Capybara Selenium driver, except for
 these two differences:
 

lib/persistent_selenium/cli.rb

@@ -3,12 +3,17 @@ require 'persistent_selenium'
 
 module PersistentSelenium
   class CLI < Thor
+    include Thor::Actions
+
+    def self.source_root
+      File.expand_path('../../../skel', __FILE__)
+    end
+
     desc "start", "Start the server"
     method_options :port => PersistentSelenium.port, :browser => PersistentSelenium.browser
     def start
       require 'persistent_selenium/browser'
       require 'drb'
-      GC.disable
 
       PersistentSelenium.configure do |c|
         c.port = options[:port]
@@ -25,6 +30,11 @@ module PersistentSelenium
       DRb.thread.join
     end
 
+    desc "install", "Install Cucumber hook for using persistent selenium"
+    def install
+      directory '.', '.'
+    end
+
     default_task :start
   end
 end

skel/features/support/persistent_selenium.rb

@@ -0,0 +1,11 @@
+# get the driver ready for use
+require 'persistent_selenium/driver'
+
+# set it for all tests
+# Capybara.default_driver = Capybara.javascript_driver = :persistent_selenium
+#
+# or, set it via the ENV, with it being the default
+# Before do
+#   Capybara.default_driver = Capybara.javascript_driver = (ENV['DRIVER'] || 'persistent_selenium').to_sym
+# end
+