Convert feature steps to RSpec 3.1.7 syntax with Transpec

This conversion is done by Transpec 3.0.1 with the following command:
    transpec features/steps

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

* 4 conversions
    from: be_false
      to: be_falsey

* 1 conversion
    from: == expected
      to: eq(expected)

* 1 conversion
    from: =~ /pattern/
      to: match(/pattern/)

* 1 conversion
    from: be_true
      to: be_truthy

* 1 conversion
    from: it { should_not ... }
      to: it { is_expected.not_to ... }

For more details: https://github.com/yujinakayama/transpec#supported-conversions