This is mainly a maintenance release

• Clarify notation for Wirtinger derivative by @goerz in #94
• Fix calculation of g_a_int by @goerz in #97
• Switch tooling to hatch by @goerz in #120
• Fix workflow badges by @goerz in #121

See also the changelog in the documentation.

Note that we no longer provide a PDF version of the package documentation, as this proved too much of a maintenance burden.

Full diff: v1.2.1...v1.3.0

• Bugfix: Crash when initializing discretized numpy-array controls (#79, thanks to @loganbvh)
• Bugfix: Corrected definition of co-states in Dissipative Qubit Reset example (#80, thanks to Alberto Castro)
• Update: Switched Testing and Documentation deployment from Travis to Github Actions (#82)

• Added: via_midpoints argument to krotov.conversions.discretize
  function
• Changed: Controls and update shapes are now discretized in a way
  that ensures numerical stability (#74, thanks to @zachmanson)
• Changed: Replaced uniseg dependency with grapheme (#76)

Note: due to the changes in the time discretization of the controls and
update shapes, this version will generally not reproduce optimization
results from previous versions to machine precision.

• Added: Support for Python 3.8
• Added: Support for QuTiP 4.5.0
• Added: Support for parallelization with loky (#72)
• Added: krotov.parallelization.set_parallelization function
• Added: krotov.parallelization.parallel_map function (improved implementation of QuTiP's parallel_map)
• Added: Ability to use threadpoolctl to limit unwanted threading
• Added: limit_thread_pool option to krotov.optimize_pulses
• Changed: krotov.propagators.expm now guarantees single-threaded execution

• Update: Citation info now points to SciPost paper (#61)
• Added: parameters col_formats and col_headers to customize the output of krotov.info_hooks.print_table (#65)
• Added: info-hooks now have access to the additional arguments propagator, chi_constructor, mu, sigma, iter_start, and iter_stop (#66)
• Added: parameter keep_original_objectives to krotov.objectives.ensemble_objectives (#67)
• Added: "Related Software" in the documentation
• Update: Documentation is now hosted on gh-pages and deployed by Doctr (#68)

• Update: Documentation now contains all information from https://arxiv.org/abs/1902.11284v5
• Added: Allow to pass args to time-dependent control functions (#56, thanks to @timohillmann)
• Changed: Renamed krotov.structural_conversions to krotov.conversions
• Bugfix: Crash when krotov.optimize_pulses is called with iter_stop=0 (#58)
• Added: krotov.result.Result is now exposed at the top level of the API, as krotov.Result (#59, thanks to @nathanshammah)
• Added: str-representation of krotov.result.Result now includes the total running time (#60, thanks to @nathanshammah)