Added tests from https://bitbucket.org/david/django-storages/pull-request/32/s3boto-gzip-fix-and-associated-unit-tests
Added tests from https://bitbucket.org/david/django-storages/pull-request/32/s3boto-gzip-fix-and-associated-unit-tests

coagulant/django-storages-py3,jessamynsmith/django-storages-py3,coagulant/django-storages-py3,jessamynsmith/django-storages-py3