Added puppetlabs-firewall (required by puppetlabs-postgresql), updated the other modules.

modules/firewall/Gemfile

@@ -0,0 +1,18 @@
+source ENV['GEM_SOURCE'] || "https://rubygems.org"
+
+group :development, :test do
+  gem 'puppetlabs_spec_helper', :require => false
+  gem 'rspec-puppet',           :require => false
+  gem 'serverspec',             :require => false
+  gem 'beaker-rspec',           :require => false
+  gem 'puppet-lint',            :require => false
+  gem 'pry',                    :require => false
+end
+
+if puppetversion = ENV['PUPPET_GEM_VERSION']
+  gem 'puppet', puppetversion, :require => false
+else
+  gem 'puppet', :require => false
+end
+
+# vim:ft=ruby