Merge pull request puppetlabs#537 from justinstoller/maint/master/geppetto-update

Update for using Geppetto plugin in CI

Author: Morgan Haskel

.geppetto-rc.json

@@ -0,0 +1,9 @@
+{
+  "excludes": [
+    "**/contrib/**",
+    "**/examples/**",
+    "**/tests/**",
+    "**/spec/**",
+    "**/pkg/**"
+  ]
+}