fix build for ruby 2.0.0

Author: Dan70402

Gemfile

@@ -17,7 +17,9 @@ group :development do
   gem "beaker-rspec"
   gem "beaker", '2.51.0'
   gem "guard-rake"
+  gem "jwt", "<=1.5.6"
   gem "nokogiri", "~> 1.6.0"
+  gem "public_suffix", "<3.0.0"
   gem "puppet-blacksmith"
   gem "xmlrpc" if RUBY_VERSION >= '2.3'
 end