Convert specs to RSpec 2.99.1 syntax with Transpec

This conversion is done by Transpec 2.3.4 with the following command:
    transpec -c "rake spec" spec/classes/ spec/defines/ spec/spec_helper.rb

* 210 conversions
    from: it { should ... }
      to: it { is_expected.to ... }

* 19 conversions
    from: it { should_not ... }
      to: it { is_expected.not_to ... }

* 15 conversions
    from: == expected
      to: eq(expected)

* 15 conversions
    from: obj.should
      to: expect(obj).to

For more details: https://github.com/yujinakayama/transpec#supported-conversions