Fix deps for older Ruby/Puppet versions, remove email notifications

Author: domcleal

.travis.yml

@@ -6,7 +6,6 @@ rvm:
   - 2.0.0
 notifications:
   email:
-   - dcleal@redhat.com
    - raphael.pinson@camptocamp.com
 env:
 # base env

Gemfile

@@ -23,8 +23,9 @@ group :development, :unit_tests do
   gem 'rake', ' < 11.0',                                   :require => false if RUBY_VERSION =~ /^1\.8/
   gem 'rspec', '< 3.2',                                    :require => false if RUBY_VERSION =~ /^1\.8/
   gem 'json', '< 2.0',                                     :require => false if RUBY_VERSION =~ /^1\.[89]/
+  gem 'json_pure', '< 2.0',                                :require => false if RUBY_VERSION =~ /^1\.[89]/
   gem 'rspec-puppet',                                      :require => false
-  gem 'puppetlabs_spec_helper',                            :require => false
+  gem 'puppetlabs_spec_helper', '< 1.2.0',                 :require => false
   gem 'metadata-json-lint',                                :require => false
   gem 'puppet-lint',                                       :require => false
   gem 'puppet-lint-unquoted_string-check',                 :require => false