Sync Travis CI build config with ASF Jenkins - run with -Prun-its profile

diff --git a/.travis.yml b/.travis.yml
index a5f7ce6..4c41b39 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,7 +19,7 @@
 install: true
 
 script:
-  - mvn verify
+  - mvn -V -Prun-its clean verify
 
 cache:
   directories: