Update dateparser to 0.7.2

[pyup-bot]

This PR updates dateparser from 0.7.0 to 0.7.2.

Changelog

0.7.2

------------------

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

0.7.1

------------------

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

Links

• PyPI: https://pypi.org/project/dateparser
• Changelog: https://pyup.io/changelogs/dateparser/
• Repo: https://github.com/scrapinghub/dateparser

[pyup-bot]

Closing this in favor of #11