Update to requirements/base.txt did not make the 1.16.1 release

[MichaelKim0407]

Please re-release the package; I just downloaded 1.16.1 from pypi and this is the content of requirements/base.txt:

coreapi>=2.3.3
coreschema>=0.0.4
ruamel.yaml>=0.15.34
inflection>=0.3.1
six>=1.10.0
uritemplate>=3.0.0

djangorestframework>=3.8
Django>=1.11.7

apparently the changes did not make it to the tarball.

[kolotev]

Please include packaging (dependency) (as it is in master branch) into new release.
Otherwise I get the following error:

ImportError: Could not import 'drf_yasg.generators.OpenAPISchemaGenerator' for API setting 'DEFAULT_GENERATOR_CLASS'. ModuleNotFoundError: No module named 'packaging'.

[axnsan12]

Duplicate of #412