Pytesmo

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- Adapters for metric calculatores were introduced. The here implemented adapters compute metrics based on temporal subsets of the time series, which can be used for rolling window metrics, seasonal metrics or multiple arbitrary sub-periods. (PR `266 <https://github.com/TUW-GEO/pytesmo/pull/266>`_)
- Fixed a bug where the status code of a successful Triple Collocation run was still set to -1 ("unknown error"). (PR `301 <https://github.com/TUW-GEO/pytesmo/pull/301>`_)

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- Add kwarg to `time_series.anomaly.calc_climatology` to compute the standard deviation of the climatology (e.g. for anomaly z-scores) (PR `290 <https://github.com/TUW-GEO/pytesmo/pull/290>`_)

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- Adding scikit-learn as installation dependency. (PR `298 <https://github.com/TUW-GEO/pytesmo/pull/298>`_)

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- fixing setting of status code for bootstrapped triple collocation (PR `285 <https://github.com/TUW-GEO/pytesmo/pull/285>`_)
- Exclude netCDF4 at version 1.6.2 due to bug when writing strings with zlib compression (PR `288 <https://github.com/TUW-GEO/pytesmo/pull/288>`_)
- added test for data_manager_failed (PR `287 <https://github.com/TUW-GEO/pytesmo/pull/287>`_)
- `read_ts` is not longer used in pytesmo (PR `289 <https://github.com/TUW-GEO/pytesmo/pull/289>`_)
- support for `max_dist` keyword in validation framework to limit comparisons to close data points (PR `291 <https://github.com/TUW-GEO/pytesmo/pull/291>`_)
- Reimplementation of CDF matching (PR `259 <https://github.com/TUW-GEO/pytesmo/pull/259>`_). This removed all other implementations, i.e. ``lin_cdf_match`` and ``cdf_beta_match``. These now are either removed (``lin_cdf_match``), or point to the new implementation (``cdf_beta_match``)

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- option to ignore NaN values in filter fields (PR `282 <https://github.com/TUW-GEO/pytesmo/pull/282>`_)

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- fixing rounding error issues in metric calculations (PR `281 <https://github.com/TUW-GEO/pytesmo/pull/281>`_)