0.17.7-2019-05-30

.. note::

Support for Django 1.8, 1.9 and 1.10 will be dropped in the next release.
As usual, compatibility shims won't be removed directly. The change
will affect the test matrix only first.

• Prevent unicode errors in tests on Python 2.7.
• Fixes in occasionally failing search test (test_search and
  test_filtering_geo_spatial).
• Working travis.
• Fixed issue with errors on empty ids filter.