Convert mocks/stubs to RSpec 3.0.0.rc1 syntax with Transpec

Some specs didn't translate well. See
spec/swt_shoes/shared_examples/clickable.rb for the big one

This conversion is done by Transpec 2.1.0 with the following command:
    transpec "--rspec-command=rake spec" --keep=its

* 126 conversions
    from: obj.stub(:message)
      to: allow(obj).to receive(:message)

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

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

* 7 conversions
    from: Klass.any_instance.should_receive(:message)
      to: expect_any_instance_of(Klass).to receive(:message)

* 4 conversions
    from: obj.should_not_receive(:message)
      to: expect(obj).not_to receive(:message)

* 3 conversions
    from: Klass.any_instance.stub(:message)
      to: allow_any_instance_of(Klass).to receive(:message)

* 2 conversions
    from: obj.unstub(:message)
      to: allow(obj).to receive(:message).and_call_original

* 1 conversion
    from: Klass.any_instance.stub(:message => value)
      to: allow_any_instance_of(Klass).to receive_messages(:message => value)

* 1 conversion
    from: Klass.any_instance.unstub(:message)
      to: allow_any_instance_of(Klass).to receive(:message).and_call_original

See also: https://github.com/yujinakayama/transpec#supported-conversions