Update test files

* Pin omnibus version at 11.8.2, redisio remote file resource failure.
* Remove explicit nil on databag_certificate_id, fails on Ubuntu
* Remove support Gemfile, and update travis.yml

.kitchen.yml

@@ -1,7 +1,7 @@
 ---
 driver_plugin: vagrant 
 driver_config:
-  require_chef_omnibus: latest
+  require_chef_omnibus: '11.8.2'
   customize:
     memory: 1024 
 

.travis.yml

@@ -1,6 +1,5 @@
 language: ruby
-gemfile:
-  - test/support/Gemfile
 rvm:
   - 1.9.3
-script: BUNDLE_GEMFILE=test/support/Gemfile bundle exec rake 
+install: bundle install --without integration
+script: bundle exec rake

Gemfile

@@ -1,7 +1,10 @@
 source 'http://rubygems.org'
 
-gem 'berkshelf'
-gem 'chefspec'
-gem 'foodcritic', '~> 3.0.0'
-gem 'test-kitchen'
-gem 'kitchen-vagrant'
+gem 'berkshelf', '~> 2.0'
+gem 'chefspec', '~> 3.2'
+gem 'foodcritic', '~> 3.0'
+
+group :integration do
+  gem 'test-kitchen'
+  gem 'kitchen-vagrant'
+end

attributes/default.rb

@@ -86,7 +86,7 @@
 default['gitlab']['trust_local_sshkeys'] = 'yes'
 
 default['gitlab']['https'] = false
-default['gitlab']['certificate_databag_id'] = nil
+default['gitlab']['certificate_databag_id']
 default['gitlab']['self_signed_cert'] = false
 default['gitlab']['ssl_certificate'] = "/etc/nginx/ssl/certs/#{node['fqdn']}.pem"
 default['gitlab']['ssl_certificate_key'] = "/etc/nginx/ssl/private/#{node['fqdn']}.key"