Update gitter webhook

Author: Guillaume Lemaitre

.travis.yml

@@ -40,7 +40,7 @@ after_success: source build_tools/travis/after_success.sh
 notifications:
   webhooks:
     urls:
-      - https://webhooks.gitter.im/e/62d5ff9bc76b1ad6eb32
-    on_success: change  # options: [always|never|change] default: always
+      - https://webhooks.gitter.im/e/188e3c7a5180fd4f2120
+    on_success: always  # options: [always|never|change] default: always
     on_failure: always  # options: [always|never|change] default: always
     on_start: never     # options: [always|never|change] default: always

circle.yml

@@ -59,4 +59,4 @@ notify:
   webhooks:
     # A list of hook hashes, containing the url field
     # gitter hook
-    - url: https://webhooks.gitter.im/e/e7b85a95168ee375ea16
+    - url: https://webhooks.gitter.im/e/c8d33a274b2b8f44819f