Formatting and add slack notifications

Author: Arnaud Breton

.travis.yml

@@ -14,3 +14,6 @@ deploy:
     repo: mailjet/mailjet-apiv3-python
 install: pip install -r requirements.txt
 script: python test.py
+notifications:
+  slack:
+    secure: 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