adding a description field to tenants.
Merge pull request #451 from continuuity/feature/add-description-to-tenant

adding a description field to tenants.
Adding .rubocop.yml and .rubocop_todo.yml
Adding .rubocop.yml and .rubocop_todo.yml
Adding .rubocop.yml and .rubocop_todo.yml
Updated .rubocop.yml and adding .rubocop_todo.yml
Adding .rubocop.yml and .rubocop_todo.yml