Optimize kitchen tests for Travis CI

Change-Id: Ic9eb8db38ffe32cd4d32b8d3d51767971cfa2c2f
diff --git a/.travis.yml b/.travis.yml
index 59f8e50..129f9c8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,16 +17,17 @@
   - bundle install
 
 env:
-  - PLATFORM=trevorj/salty-whales:xenial SUITE=api_single
-  - PLATFORM=trevorj/salty-whales:xenial SUITE=api_cluster
-  - PLATFORM=trevorj/salty-whales:xenial SUITE=manager_single
+  - PLATFORM=trevorj/salty-whales:xenial SUITE=api-single
+  - PLATFORM=trevorj/salty-whales:xenial SUITE=api-cluster
+  - PLATFORM=trevorj/salty-whales:xenial SUITE=manager-single
 
 before_script:
   - set -o pipefail
   - 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: