add function which

 - allow only admin to create/update document
 - perform some basic checking on structure of newDocument

src/couchapp/secreton/validate_doc_update.js

+	
+function(newDoc, oldDoc, userCtx, secObj) {
+	 if(!userCtx || userCtx.roles.indexOf("admin") == -1 ) {
+         throw({forbidden: "Bad user userCtx.name="+userCtx.name+" , userCtx.roles="+userCtx.roles});
+      } else {
+    	  if (!newDoc.code) throw({forbidden : "Secretion system must have a code"});
+    	  if (!newDoc.genes) throw({forbidden : "Secretion system must have a genes"});
+    	  if (!newDoc.T3SS_family) throw({forbidden : "Secretion system must have a T3SS_family"});
+    	  if (!newDoc.replicon) throw({forbidden : "Secretion system must have a replicon"});
+    	  if (!newDoc.replicon.strain) throw({forbidden : "Replicon must have a strain"});
+    	  if (!newDoc.replicon.type) throw({forbidden : "Replicon must have a type"});
+    	  if (!newDoc.replicon.name) throw({forbidden : "Replicon must have a name"});
+      }
+}
+