Prepare the qutip-qip-0.2.0 release

[BoxiLi]

This release adds a few new features to the pulse-level simulator.

Improvements

• MAJOR Add the Model class that represents the physical model including hardware parameters, control and drift Hamiltonians and noise objects. (Improve the scheduling algorithm #105)
• Separate the gate definition from the QubitCircuit.propagators method (Separate the gate definition from the QubitCircuit.propagators method #83)
• Support different pulse shapes. (Support different pulse shapes #85)
• Use autosummary to generate a summary of API docs. (Hadamard transform efficient #103)
• Improve the scheduling algorithm. (Improve the scheduling algorithm #105)

Compatibility Note

The behaviour of Processor.pulses changes significantly from version 0.1 to version 0.2. In 0.1, if no control coefficients are added, pulses contains a list of partially initialized :obj:.Pulse objects. They include control Hamiltonians but have no coefficients or tlist. This behaviour has changed. From 0.2, the list only includes controls that have non-trivial dynamics. To inspect the available control Hamiltonians, please use :obj:.Processor.get_control and :obj:.Processor.get_control_labels.

[BoxiLi]

Note: Merge #109 first! That one needs to be included in 0.2.0. I'll rebase against master again after that is merged.

• Done

[BoxiLi]

@nathanshammah Ready.

[nathanshammah]

LGTM, thank you @BoxiLi! The delayed dates are to be able to push to pypi afterwards? just make sure they work fine.

[BoxiLi]

The delayed dates are to be able to push to pypi afterwards?

Yes, probably that's not really needed. Anyway, pulse or minus one day in the changelog is not a big deal.