Convert specs to RSpec 3.0.0 syntax with Transpec

This conversion is done by Transpec 2.2.1 with the following command:
    transpec

* 102 conversions
    from: obj.should
      to: expect(obj).to

* 26 conversions
    from: == expected
      to: eq(expected)

* 9 conversions
    from: obj.should_not
      to: expect(obj).not_to

* 6 conversions
    from: be_true
      to: be_truthy

* 1 conversion
    from: failure_message_for_should { }
      to: failure_message { }

For more details: https://github.com/yujinakayama/transpec#supported-conversions
RSpec: Support block argument for #perform_queries