Enable Travis builds for 3.0-stable branch
diff --git a/.travis.yml b/.travis.yml
index 258ad76..adc60d7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -48,4 +48,5 @@
 branches:
   only:
     - develop
+    - 3.0-stable
     - /^feature\/.+$/