add oauth_dropins like for static file handlers, gunicorn req't

app.yaml

@@ -12,8 +12,8 @@ handlers:
 
 # static
 - url: /(static/bootstrap.*\.css)
-  static_files: local/lib/python2.7/site-packages/oauth_dropins/\1
-  upload: local/lib/python2.7/site-packages/oauth_dropins/static/bootstrap.*\.css
+  static_files: oauth_dropins/\1
+  upload: oauth_dropins/static/bootstrap.*\.css
   secure: always
 
 - url: /static
@@ -21,7 +21,7 @@ handlers:
   secure: always
 
 - url: /oauth_dropins/static
-  static_dir: local/lib/python2.7/site-packages/oauth_dropins/static
+  static_dir: oauth_dropins/static
   secure: always
 
 - url: /.well-known/acme-challenge

oauth_dropins

@@ -0,0 +1 @@
+local3/lib/python3.6/site-packages/oauth_dropins

requirements.txt

@@ -5,6 +5,7 @@ git+https://github.com/snarfed/oauth-dropins.git@master#egg=oauth_dropins
 git+https://github.com/snarfed/granary.git@master#egg=granary
 feedparser~=5.2
 google-cloud-logging~=1.14
+gunicorn~=20.0
 mf2util~=0.5.0
 pycrypto~=2.6
 requests~=2.22