chore(travis): add an integration hook for the angular hubot daemon

Closes angular#13777

Author: matsko

.travis.yml

@@ -62,6 +62,7 @@ notifications:
   webhooks:
     urls:
       - https://webhooks.gitter.im/e/d2120f3f2bb39a4531b2
-    on_success: change  # options: [always|never|change] default: always
+      - http://104.197.9.155:8484/hubot/travis/activity #hubot-server
+    on_success: always  # options: [always|never|change] default: always
     on_failure: always  # options: [always|never|change] default: always
-    on_start: false     # default: false
+    on_start: always    # default: false