Merge changes I6974d505,I3685381f

* changes:
  Allow change GroupJson options in CreateGroup
  CreateGroup: add members to GroupInput

gerrit-extension-api/src/main/java/com/google/gerrit/extensions/api/groups/GroupInput.java

@@ -14,9 +14,12 @@
 
 package com.google.gerrit.extensions.api.groups;
 
+import java.util.List;
+
 public class GroupInput {
   public String name;
   public String description;
   public Boolean visibleToAll;
   public String ownerId;
+  public List<String> members;
 }