Pin rspec to 2.x to avoid bug with 1.8.7

Author: Colleen Murphy

Gemfile

@@ -2,6 +2,7 @@ source ENV['GEM_SOURCE'] || "https://rubygems.org"
 
 group :development, :unit_tests do
   gem 'rake',                    :require => false
+  gem 'rspec', '~> 2.0',         :require => false
   gem 'rspec-puppet',            :require => false
   gem 'puppetlabs_spec_helper',  :require => false
   gem 'puppet-lint',             :require => false