[CI] Add travisbuddy support

Signed-off-by: Frederic Pillon <[email protected]>

Author: fpistm

Diff for: .travis.yml

@@ -66,6 +66,8 @@ matrix:
     after_failure:
       - echo " The build is failed. If script return a non-zero return status , we suggest you to take the above logs into consideration. Otherwise, consult the TRAVIS CI documentation to learn more about build failure" 
 notifications:
+  webhooks: https://www.travisbuddy.com/?insertMode=update
+    on_success: never
   email:
     on_success: always
     on_failure: always