Convert specs to RSpec 2.99.0 syntax with Transpec

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

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

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

For more details:
https://github.com/yujinakayama/transpec#supported-conversions
RSpec: Removed deprecated option
Use RSpec 3