Dateparser

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Improvements:

* Rename ``scripts`` to ``dateparser_scripts`` to avoid name collisions with modules from other packages or projects (see 707)

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New features:

* Add Python 3.8 support (see 664)
* Implement a ``REQUIRE_PARTS`` setting (see 703)
* Add support for subscript and superscript numbers (see 684)
* Extended French support (see 672)
* Extended German support (see 673)


Improvements:

* Migrate test suite to Pytest (see 662)
* Add test to check the `yaml` and `json` files content (see 663 and 692)
* Add flake8 pipeline with pytest-flake8 (see 665)
* Add partial support for 8-digit dates without separators (see 639)
* Fix possible ``OverflowError`` errors and explicitly avoid to raise ``ValueError`` when parsing relative dates (see 686)
* Fix double-digit GMT and UTC parsing (see 632)
* Fix bug when using ``DATE_ORDER`` (see 628)
* Fix bug when parsing relative time with timezone (see 503)
* Fix milliseconds parsing (see 572 and 661)
* Fix wrong values to be interpreted as ``'future'`` in ``PREFER_DATES_FROM`` (see 629)
* Other small improvements (see 667, 675, 511, 626, 512, 509, 696, 702 and 699)

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New features:

* Extended Norwegian support (see 598)
* Implement a ``PARSERS`` setting (see 603)

Improvements:

* Add support for ``PREFER_DATES_FROM`` in relative/freshness parser (see 414)
* Add support for ``PREFER_DAY_OF_MONTH`` in base-formats parser (see 611)
* Added UTC -00:00 as a valid offset (see 574)
* Fix support for “one” (see 593)
* Fix TypeError when parsing some invalid dates (see 536)
* Fix tokenizer for non recognized characters (see 622)
* Prevent installing regex 2019.02.19 (see 600)
* Resolve DeprecationWarning related to raw string escape sequences (see 596)
* Implement a tox environment to build the documentation (see 604)
* Improve tests stability (see 591, 605)
* Documentation improvements (see 510, 578, 619, 614, 620)
* Performance improvements (see 570, 569, 625)

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* Broken version

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Features:

* Extended Czech support
* Added ``time`` to valid periods
* Added timezone information to dates found with ``search_dates()``
* Support strings as date formats


Improvements:

* Fixed Collections ABCs depreciation warning
* Fixed dates with trailing colons not being parsed
* Fixed date format override on any settings change
* Fixed parsing current weekday as past date, regardless of settings
* Added UTC -2:30 as a valid offset
* Added Python 3.7 to supported versions, dropped support for Python 3.3 and 3.4
* Moved to importlib from imp where possible
* Improved support for Catalan
* Documentation improvements

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Features/news:

* Added detected language to return value of ``search_dates()``
* Performance improvements
* Refreshed versions of dependencies

Improvements:

* Fixed unpickleable ``DateTime`` objects with timezones
* Fixed regex pattern to avoid new behaviour of re.split in Python 3.7
* Fixed an exception thrown when parsing colons
* Fixed tests failing on days with number greater than 30
* Fixed ``ZeroDivisionError`` exceptions