Convert (most) specs to RSpec 2.14.8 syntax using transpec. Skip custom matchers.

This conversion is done by Transpec 1.13.1 with the following command:
    transpec

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

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

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

* 2 conversions
    from: === expected
      to: be === expected

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

* 1 conversion
    from: < expected
      to: be < expected

* 1 conversion
    from: > expected
      to: be > expected