release v1.0.0 (2015-09-01)

• Install BoxBilling 4 by default, adds node['boxbilling']['version'] attribute (breaking change).
• Update chef links to use chef.io domain.
• Update contact information and links after migration.
• metadata: Add source_url and issues_url.
• Documentation:
  • README:
  • Use markdown tables.
  • Improve description.
• Testing:
  • Replace all bats integration tests by Serverspec and infrataster tests.
  • Fix already initialized constant warning.
  • Gemfile: Update RuboCop to 0.33.0.
  • Move ChefSpec tests to test/unit.
  • Add a Guardfile.
  • Rakefile: Add clean task.
  • Travis CI: Run tests on Ruby 2.2.