Returning public user info.

models/user.js

@@ -402,7 +402,7 @@ UserService.findById = (id) => {
 };
 
 /**
- * Finds users in an array of idd.
+ * Finds users in an array of ids.
  * @param {Array} ids  array of user identifiers (uuid)
 */
 UserService.findByIdArray = (ids) => {
@@ -411,6 +411,16 @@ UserService.findByIdArray = (ids) => {
   });
 };
 
+/**
+ * Finds public user information by an array of ids.
+ * @param {Array} ids  array of user identifiers (uuid)
+*/
+UserService.findPublicByIdArray = (ids) => {
+  return UserModel.find({
+    'id': {$in: ids}
+  }, 'id displayName');
+};
+
 /**
  * Creates a JWT from a user email. Only works for local accounts.
  * @param {String} email of the local user