Merge pull request #184 from carolynvs/fix-tests-required-params

Fix integration tests for required params

Author: carolynvs-msft

build/testdata/bundles/wordpress/porter.yaml

@@ -8,8 +8,8 @@ invocationImage: porter-wordpress:latest
 dependencies:
 - name: mysql
   parameters:
-    database_name: wordpress
-    mysql_user: wordpress
+    database-name: wordpress
+    mysql-user: wordpress
 
 credentials:
 - name: kubeconfig