add gitter to travis webhooks

Author: Flyingmana

.travis.yml

@@ -32,3 +32,10 @@ notifications:
       - "irc.freenode.org#magento-composer"
     on_success: change # default: always
     on_failure: always # default: always
+  webhooks:
+    urls:
+      - https://webhooks.gitter.im/e/c5ef1e9abfc452125de8
+      - https://webhooks.gitter.im/e/c15428595390b938ee38
+    on_success: change  # options: [always|never|change] default: always
+    on_failure: always  # options: [always|never|change] default: always
+    on_start: false     # default: false