Merge branch 'json-dependency'

Gemfile

@@ -1,14 +1,18 @@
 source 'https://rubygems.org'
-puppetversion = ENV.key?('PUPPET_VERSION') ? "#{ENV['PUPPET_VERSION'].to_s}" : ">= 3.8"
-jsonversion = ENV['TRAVIS_RUBY_VERSION'].to_i <= 2 ? "1.8.3" : "~> 2.0"
-gem 'puppet', puppetversion
+
+gem 'puppet', ENV.key?('PUPPET_VERSION') ? ENV['PUPPET_VERSION'].to_s : '>= 3.8'
+
 gem 'puppetlabs_spec_helper', '>= 0.1.0'
 gem 'puppet-lint', '>= 0.3.2'
 gem 'facter', '>= 1.7.0'
 gem 'facterdb', :git => 'https://github.com/jfryman/facterdb', :ref => 'sles-12-support'
 gem 'rspec-puppet-facts', '>= 1.6.0'
-gem 'json', jsonversion
-gem 'json_pure', jsonversion
 gem 'metadata-json-lint'
 
 gem 'parallel_tests', RUBY_VERSION < '2.0.0' ? '~> 2.9.0' : '>= 2.10.0'
+
+# json > 2.0.1 is not compatible with Ruby 1.9
+if RUBY_VERSION < '2.0.0'
+  gem 'json', '< 2'
+  gem 'json_pure', '< 2'
+end