Pin gem versions for stable branch

This intends to pin all the major gems to the version they were during
development cycle.  This should isolate the existing tests from changes in
rspec, etc.

Change-Id: Id3479c9c65c8aa2533d4f7311887fbe715dae707

Author: claytono

Gemfile

@@ -1,9 +1,13 @@
 source 'https://rubygems.org'
 
 group :development, :test do
-  gem 'puppetlabs_spec_helper', :require => false
+  gem 'puppetlabs_spec_helper', '~> 0.4.1', :require => false
+  gem 'rspec', '~> 2.14.0'
+  gem 'mocha', '~> 0.10.5'
+  gem 'rspec-puppet', '~> 1.0.1'
   gem 'puppet-lint', '~> 0.3.2'
   gem 'rake', '10.1.1'
+  gem 'webmock', '~> 1.18.0'
 end
 
 if puppetversion = ENV['PUPPET_GEM_VERSION']