List celery as an optional dependency

Hugo Osvaldo Barrera · Hugo Osvaldo Barrera · commit 6044e7f610ed · 2018-12-09T18:19:55.000-03:00
diff --git a/setup.py b/setup.py
@@ -16,6 +16,7 @@
     setup_requires=['setuptools_scm'],
     extras_require={
         'fixtures': ['factory-boy'],
+        'celery-task': ['celery'],
     },
     classifiers=[
         'Development Status :: 4 - Beta',
