Updated to rspec 2.99
Convert specs to RSpec 2.99.0 syntax with Transpec

This conversion is done by Transpec 2.3.0 with the following command:
    transpec

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

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

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

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

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

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

* 6 conversions
    from: lambda { }.should
      to: expect { }.to

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

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

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

* 3 conversions
    from: lambda { }.should_not
      to: expect { }.not_to

* 3 conversions
    from: obj.stub(:message).and_return { value }
      to: obj.stub(:message) { value }

* 1 conversion
    from: describe 'some mailer' { }
      to: describe 'some mailer', :type => :mailer { }

For more details: https://github.com/yujinakayama/transpec#supported-conversions
Updated to rspec 3.0
Rubocop updates