Update to Rspec 2.99 and fix the deprecation warnings.
Update to rspec 2.99.0.rc1 and fix more deprecations
Convert specs to RSpec 2.99.0.rc1 syntax with Transpec

(In addition to the autoconvert, fix a missing test matcher
in races_controller_spec.rb found after conversion.)

This conversion is done by Transpec 2.0.0 with the following command:
    transpec

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

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

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

* 11 conversions
    from: describe 'some controller' { }
      to: describe 'some controller', :type => :controller { }

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

* 9 conversions
    from: describe 'some model' { }
      to: describe 'some model', :type => :model { }

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

* 3 conversions
    from: describe 'some feature' { }
      to: describe 'some feature', :type => :feature { }

* 3 conversions
    from: describe 'some view' { }
      to: describe 'some view', :type => :view { }

* 2 conversions
    from: describe 'some helper' { }
      to: describe 'some helper', :type => :helper { }

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

See also: https://github.com/yujinakayama/transpec#supported-conversions
Update to rspec 3.0.0.rc1; remove fuubar formatter
try again on the travis databse