SEBA-611 Add xproto-test target and fix linting issues

Change-Id: I5f594fbfcae6dec8a15f9713825f3695f154f96c
diff --git a/xos/synchronizer/models/kubernetes.xproto b/xos/synchronizer/models/kubernetes.xproto
index dfcc072..a148d8a 100644
--- a/xos/synchronizer/models/kubernetes.xproto
+++ b/xos/synchronizer/models/kubernetes.xproto
@@ -43,7 +43,8 @@
         help_text = "Name of this data store",
         max_length=256];
     optional string data = 2 [
-        help_text = "Set of key,value pairs encoded as a json dictionary"];
+        help_text = "Set of key,value pairs encoded as a json dictionary",
+        text = True];
     required manytoone trust_domain->TrustDomain:kubernetes_configmaps = 3:1003 [
         help_text = "Trust domain this data resides in",
         db_index = True];