Add notifications to TravisCI builds.

Author: octalmage

.travis.yml

@@ -10,7 +10,7 @@ node_js:
   - 3 #Latest io.js build.
   - 4.2.4 #LTS
   - stable
-  
+
 matrix:
   allow_failures:
     - node_js: 0.8
@@ -29,4 +29,12 @@ addons:
 
 before_script:
   - export DISPLAY=:99.0
-  - sh -e /etc/init.d/xvfb start
+  - sh -e /etc/init.d/xvfb start
+
+notifications:
+  webhooks:
+    urls:
+      - https://webhooks.gitter.im/e/e737dd5170be50cdba95
+    on_success: change
+    on_failure: always
+    on_start: never