Add group editing support to the UI

Admins and members who have the "owner" flag set to true may edit
the contents of a group by changing its description or editing its
membership list.  Changes are mostly done live, as soon as the user
presses the action keys.

Account lookup is completed through the suggest service, helping
the user to complete an account identity by name and/or the user's
preferred email address.

Signed-off-by: Shawn O. Pearce <sop@google.com>

appjar/src/main/java/com/google/gerrit/client/admin/AdminMessages.java

@@ -0,0 +1,21 @@
+// Copyright 2008 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.client.admin;
+
+import com.google.gwt.i18n.client.Messages;
+
+public interface AdminMessages extends Messages {
+  public String group(String name);
+}