Should get things passing on:
- ruby-2.5.3
- jruby-9.1.17.0

Fixes adhearsion#35

…a supervision tree"

See d9b806a

Makes it easier to ensure that the build stays green from the RSpec 2.99 -> RSpec 3.x transition.

This conversion is done by Transpec 3.4.0 with the following command:
    transpec -f

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

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

* 8 conversions
    from: it { should ... }
      to: it { is_expected.to ... }

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

* 5 conversions
    from: =~ /pattern/
      to: match(/pattern/)

* 5 conversions
    from: it { should_not ... }
      to: it { is_expected.not_to ... }

* 3 conversions
    from: obj.should_receive(:message)
      to: expect(obj).to receive(:message)

* 2 conversions
    from: be_false
      to: be_falsey

* 2 conversions
    from: its(:attr) { }
      to: describe '#attr' do subject { super().attr }; it { } end

* 1 conversion
    from: lambda { }.should
      to: expect { }.to

* 1 conversion
    from: mock('something')
      to: double('something')

* 1 conversion
    from: obj.stub(:message)
      to: allow(obj).to receive(:message)

* 1 conversion
    from: pending
      to: skip

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

...with a documented, supported argument matcher block to #receive.

Unsupported in #with:
rspec/rspec-mocks#377 (comment)

Supported in #receive:
https://github.com/rspec/rspec-mocks#arbitrary-handling

Convert specs to RSpec 3.8.2 syntax with Transpec

This conversion is done by Transpec 3.4.0 with the following command:
    transpec -f

* 2 conversions
    from: obj.stub(:message => value)
      to: allow(obj).to receive_messages(:message => value)

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

This reverts commit a9d85a5.