Djangorestframework-gis

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

- `173
<https://github.com/openwisp/django-rest-framework-gis/pull/173>`_:
added support for django 2.1, DRF 3.9 and switched to django-filters >=
2.0 (**which requires python >= 3.4**)
- `178
<https://github.com/openwisp/django-rest-framework-gis/pull/178>`_:
simplified ``setup.py`` and tox build

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

- `161
<https://github.com/openwisp/django-rest-framework-gis/pull/161>`_:
added flag to reduce precision of ``GeometryField``
- `164
<https://github.com/openwisp/django-rest-framework-gis/pull/164>`_:
added compatibility with django-rest-framework 3.8

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

- `138
<https://github.com/openwisp/django-rest-framework-gis/pull/138>`_:
added support for ``GeometryCollection`` fields
- `146
<https://github.com/openwisp/django-rest-framework-gis/pull/146>`_:
added compatibility with django-rest-framework 3.7
- `147
<https://github.com/openwisp/django-rest-framework-gis/pull/147>`_:
added support to django 2.0 beta
- dropped support for django 1.7, 1.8, 1.9 and 1.10

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

- `eb54fc0
<https://github.com/openwisp/django-rest-framework-gis/commit/eb54fc0>`_:
``GeometryFilter`` now use ``BaseGeometryWidget``
- `33a6418
<https://github.com/openwisp/django-rest-framework-gis/commit/33a6418>`_:
fixed tests for Django 1.11: ``Point`` comparison uses ``srid``

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

- `119
<https://github.com/openwisp/django-rest-framework-gis/issues/119>`_:
Added support to "__all__" fields in serializer
- `130
<https://github.com/openwisp/django-rest-framework-gis/pull/130>`_:
Added compatibility with DRF 3.6

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

- `106
<https://github.com/openwisp/django-rest-framework-gis/pull/106>`_:
dropped support for django 1.7
- `117
<https://github.com/openwisp/django-rest-framework-gis/pull/117>`_:
added support for django-filter 0.15
- `6479949
<https://github.com/openwisp/django-rest-framework-gis/commit/6479949>`_:
fixed tests for latest DRF 3.5 version
- `35e3b87
<https://github.com/openwisp/django-rest-framework-gis/commit/35e3b87>`_:
added official support to django 1.10