send travis stuff to gitter

.travis.yml

@@ -30,3 +30,10 @@ addons:
     - diffutils
 after_success: 
   bash util/travis_compiled_push.sh
+notifications:
+  webhooks:
+    urls:
+      - https://webhooks.gitter.im/e/cca31de3d44b9adb617b
+    on_success: change  # options: [always|never|change] default: always
+    on_failure: always  # options: [always|never|change] default: always
+    on_start: never     # options: [always|never|change] default: always