Fixed cucumber plugin packaging

Gemfile

@@ -8,5 +8,6 @@ gem 'cucumber'
 gem 'headless'
 gem 'i18n'
 gem 'launchy'
+gem 'rake'
 gem 'rspec'
 gem 'selenium-webdriver'

features/support/env.rb

@@ -51,17 +51,24 @@
   require 'selenium-webdriver'
   profile = Selenium::WebDriver::Firefox::Profile.new
   profile.add_extension File.expand_path(%w(.. .. .. firefox build careplane.xpi).join('/'), __FILE__)
+  profile['javascript.options.showInConsole'] = true
   Capybara::Selenium::Driver.new app, :browser => :firefox, :profile => profile
 end
 
 Before("@chrome") do
-  puts 'Building package...'
-  puts `rake google_chrome:package`, 'Done!'
+  unless @chrome_built
+    puts 'Building chrome package...'
+    puts `rake google_chrome:package`, 'Done!'
+    @chrome_built = true
+  end
   Capybara.current_driver = :selenium_chrome
 end
 
 Before("@firefox") do
-  puts 'Building package...'
-  puts `rake firefox:package`, 'Done!'
+  unless @firefox_built
+    puts 'Building firefox package...'
+    puts `rake firefox:package`, 'Done!'
+    @firefox_built = true
+  end
   Capybara.current_driver = :selenium_firefox
 end