Update .travis.yml

Author: jpotts18

.travis.yml

@@ -13,4 +13,12 @@ script:
   - pod lib lint
 after_success:
 
-  - bash <(curl -s https://codecov.io/bash)
+  - bash <(curl -s https://codecov.io/bash)
+  
+  
+notifications:
+  webhooks:
+    urls:
+      - https://webhooks.gitter.im/e/4cfa929bd227586305cc
+    on_success: change  # options: [always|never|change] default: always
+    on_failure: always  # options: [always|never|change] default: always