style(armada): quality of life and cleanup

- adding .editorconfig file
- minor cleanup in various files related to .editorconfig
- typos, whitespace, etc.
- other general housekeeping items on the codebase

Change-Id: I104f8dcb06aafb180da12f7ee4c0ded41fc07b9d

armada/conf/default.py

@@ -69,17 +69,17 @@ The Keystone project domain name used for authentication.
     cfg.StrOpt(
         'tiller_pod_labels',
         default='app=helm,name=tiller',
-        help=utils.fmt('Labels for the tiller pod.')),
+        help=utils.fmt('Labels for the Tiller pod.')),
 
     cfg.StrOpt(
         'tiller_namespace',
         default='kube-system',
-        help=utils.fmt('Namespace for the tiller pod.')),
+        help=utils.fmt('Namespace for the Tiller pod.')),
 
     cfg.IntOpt(
         'tiller_port',
         default=44134,
-        help=utils.fmt('Port for the tiller pod.')),
+        help=utils.fmt('Port for the Tiller pod.')),
 
     cfg.ListOpt(
         'tiller_release_roles',