Optimize kitchen tests for Travis CI

Change-Id: Ia3ebaf53dc848ed9ef23e50fee9fb4b73f7a972f
diff --git a/.travis.yml b/.travis.yml
index b383b8d..3599b21 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -29,7 +29,8 @@
   - make test | tail
 
 script:
-  - KITCHEN_LOCAL_YAML=.kitchen.travis.yml bundle exec kitchen test -t tests/integration
+  - test ! -e .kitchen.yml || bundle exec kitchen converge ${SUITE} || true
+  - test ! -e .kitchen.yml || bundle exec kitchen verify ${SUITE} -t tests/integration
 
 notifications:
   webhooks: