Convert specs to RSpec 2.14.8 syntax with Transpec

This conversion is done by Transpec 2.2.4 with the following command:
    transpec

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

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

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

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

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

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

* 1 conversion
    from: =~ [1, 2]
      to: match_array([1, 2])

* 1 conversion
    from: collection.should have(n).items
      to: expect(collection.size).to eq(n)

* 1 conversion
    from: obj.should have(n).entries
      to: expect(obj.entries.size).to eq(n)

* 1 conversion
    from: obj.should_not_receive(:message)
      to: expect(obj).not_to receive(:message)

For more details: https://github.com/yujinakayama/transpec#supported-conversions
Merge CHANGES from 0-15-stable
Flag flaky specs as pending
Update rspec
Use timers 3.0.0
Note use of new timers in CHANGES