Bump rspec version
Convert specs to RSpec 2.14.8 syntax with Transpec

This conversion is done by Transpec 2.3.7 with the following command:
    transpec

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

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

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

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

* 1 conversion
    from: RSpec.configure { |c| c.color_enabled = something }
      to: RSpec.configure { |c| c.color = something }

For more details: https://github.com/yujinakayama/transpec#supported-conversions
Merge pull request #114 from pearkes/transpec_fixes

Transpec fixes