Explicitly add Flask as dependancy

Fokko Driesprong · Fokko Driesprong · commit d5eca0f87e8f · 2017-08-07T17:20:38.000+02:00
diff --git a/setup.py b/setup.py
@@ -46,6 +46,7 @@ def get_git_sha():
         'celery==3.1.25',
         'colorama==0.3.9',
         'cryptography==1.9',
+        'flask==0.12.2',
         'flask-appbuilder==1.9.1',
         'flask-cache==0.13.1',
         'flask-migrate==2.0.3',
