Iminuit

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New features
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- New more compact function minimum display with warning about parameters at limit
- Colours adjusted in HTML display to enhance contrast for people with color blindness
- Allow subclasses to use ``Minuit.from_array_func`` (`467 <https://github.com/scikit-hep/iminuit/pull/467>`_) [contributed by kratsg]
- Nicer tables on terminal thanks to unicode characters
- Wrapped functions' parameters are now correctly recognized [contributed by Gonzalo]
- Dark theme friendlier HTML style (`481 <https://github.com/scikit-hep/iminuit/pull/481>`_) [based on patch by l-althueser]

Bug-Fixes
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- Fixed reported EDM goal for really small tolerances
- ``Minuit.np_merrors`` now works correctly when some parameters are fixed
- Fixed HTML display of Minuit.matrix when some diagonal elements are zero

Deprecated
~~~~~~~~~~
- Removed ``nsplit`` option from ``Minuit.migrad`` (`462 <https://github.com/scikit-hep/iminuit/pull/462>`_)

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- Fixes an error introduced in 1.4.8 in ``Minuit.minos`` when ``var`` keyword is used and at least one parameter is fixed

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- Allow ``ncall=None`` in ``Minuit.migrad``, ``Minuit.hesse``, ``Minuit.minos``
- Deprecated ``maxcall`` argument in ``Minuit.minos``: use ``ncall`` instead

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- Fixed: ``cost.LeastSquares`` failed when ``yerror`` is passed as list and mask is set

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- Update to Minuit2 C++ code to ROOT v6.23-01
- Fixed: iminuit now reports an invalid fit if a cost function has only a maximum, not a minimum (fixed upstream)
- Loss function in ``cost.LeastSquares`` is now mutable
- Cost functions in ``cost`` now support value masks
- Documentation improvements
- Fixed a deprecation warning in ``Minuit.mnprofile``
- Binder now uses wheels instead of compiling current iminuit

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- Improved pretty printing for Minos Errors object ``MErrors``
- Added docs for cost functions