Update .travis.yml and notififcations
diff --git a/.kitchen.yml b/.kitchen.yml
index e59912b..ce5d071 100644
--- a/.kitchen.yml
+++ b/.kitchen.yml
@@ -29,15 +29,11 @@
 verifier:
   name: inspec
   sudo: true
-platforms:
-  - name: ubuntu-trusty
-    driver_config:
-      image: trevorj/salty-whales:trusty
-      platform: ubuntu
 
-  - name: ubuntu-xenial
+platforms:
+  - name: <%=ENV['PLATFORM'] || 'ubuntu-xenial'%>
     driver_config:
-      image: trevorj/salty-whales:xenial
+      image: <%=ENV['PLATFORM'] || 'trevorj/salty-whales:xenial'%>
       platform: ubuntu
 
 suites: