1.6.2
 - tests: improve coverage
 - enh: add sanity checks for models during registration (#5)
1.6.1
 - enh: if the contact point estimate is not possible, use a fit
   with a partially constant and linear function
1.6.0
 - enh: improve contact point estimation by computing the gradient
   first; resolves issues with tilted baselines (#6)
   (This may affect fitting results slightly, hence the new minor
   release)
1.5.5
 - setup: make tkinter optional for frozen applications
1.5.4
 - setup: bump scikit-learn from 0.18.0 to 0.23.0 (different
   model results due to bugfixes, enhancements, or random
   sampling procedures; the tests have been updated accordingly)
 - setup: bump afmformats from 0.10.0 to 0.10.2
1.5.3
 - setup: new builds for Python 3.8
1.5.2
 - enh: be more verbose when tip position cannot be computed
 - setup: bump afmformats from 0.7.0 to 0.10.0
1.5.1
 - setup: bump afmformats from 0.6.0 to 0.7.0 (metadata fixes)
1.5.0
 - feat: IndentationGroup.get_enum returns a curve from an enum value
 - setup: bump afmformats from 0.5.0 to 0.6.0 (hdf5 export, improved tab
   export)
1.4.1
 - enh: set parameter `baseline` to "vary" for all models
 - fix: make sure that `model_key` is set before `params_initial`
   when fitting with kwargs (otherwise, `params_initial` might reset)
1.4.0
 - feat: add function `Indentation.get_rating_parameters`
 - feat: compute additional ancillary parameter "Maximum indentation"
 - feat: new functions `model.get_parm_unit` and updated
   `model.get_parm_name` to work with ancillary parameters as well
1.3.0
 - feat: allow to define ancillary parameters for models and use them
   during fitting by default
 - feat: `Indentation.get_initial_fit_parameters` now automatically
   computes common and model-related ancillary parameters if no
   initial parameters are present
 - enh: allow to set the `model_key` in more functions of `Indentation`
 - ref: use `idnt` to represent Indentation instances
 - fix: preprocessing steps not stored in `Indentation.preprocessing`
 - setup: bump afmformats from 0.4.1 to 0.5.0
1.2.4
 - enh: update boundaries and default values for model parameters
1.2.3
 - fix: FitProperties did not detect changes in "params_initial"
1.2.2
 - setup: bump afmformats version from 0.3.0 to 0.4.1
1.2.1
 - enh: skip computation of tip position if it is already in the
   dataset and cannot be computed e.g. due to missing spring constant
 - fix: typo in get_data_paths_enum
 - setup: bump afmformats version from 0.2.0 to 0.3.0
1.2.0
 - tests: np.asscalar is deprecated
 - ref: migrate to afmformats (#1)
 - docs: minor improvements
1.1.2
 - fix: add ``__version__`` property
 - tests: use time.perf_counter for timing tests
 - docs: improved LaTeX rendering
1.1.1
 - setup: migrate to PEP 517 (pyproject.toml)
 - docs: minor update
1.1.0
 - feat: add contact point to available features in qmap visualization
 - fix: avoid two invalid operations when computing features 
1.0.1
 - fix: invalid operation when loading data with a callback function
1.0.0
 - docs: minor update
0.9.3
 - enh: store nanite and h5py library versions in rating container
 - enh: update hyperparameters of rating regressors
 - ref: deprecation in h5py: replace dataset.value by dataset[...]
0.9.2
 - ref: renamed the mode `model_hertz_parabolic` to
   `model_hertz_paraboloidal` to be consistent
 - docs: updat code reference and other minor improvements
0.9.1
 - fix: `preprocessing` keyword not working in `Indentation.fit_model`
 - docs: add another scripting example and minor improvements
 - tests: increase coverage
0.9.0
 - ref: remove legacy "discrete" feature type
 - ref: renamed kwargs for `Indetation.rate_quality`
 - ref: new method `nanite.load_group` for loading experimental data
 - ref: new class read.data.IndentationData for managing data
 - ref: replace dataset.IndentationDataSet with group.IndentationGroup
   to avoid ambiguities
 - fix: add missing "zef18" training set
 - fix: sample weight computation failed when a rating level was missing
 - enh: add `nanite-generate-training-set` command line program
 - tests: reduce warnings and increase coverage
 - cleanup: old docs in nanite.rate.io
 - docs: major update using helper extensions
0.8.0
 - initial release
