exclude asf-site branch from travis ci
diff --git a/.travis.yml b/.travis.yml
index 104f791..5598688 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,3 +21,7 @@
   - export PATH=$M2_HOME/bin:$PATH
 
 install: mvn clean install
+
+branches:
+  exclude:
+    - asf-site