VOL-4795 - Researching community pod faiure.

.gitignore
----------
   o Add exclusions so npm-groovy-lint can be used.

vars/getVolthaCode.groovy
-------------------------
   o Added an iam() method to self-identfy the scirpt.
   o Wrap call() logic in a try/catch block so problems are always visible.
   o groovy-lint - declare local vars to shorten long lines.
   o Add whitespace and separation for readability.

Include more sources to trigger a jenkins build.

Change-Id: I50be0be0dbd69da55d6aad5c48bc6ef832056afc
diff --git a/.gitignore b/.gitignore
index f07503c..0506491 100644
--- a/.gitignore
+++ b/.gitignore
@@ -33,3 +33,9 @@
 venv-jjb
 job-configs
 
+# npm-groovy-lint
+node_modules/
+package-lock.json
+package.json
+
+# [EOF]