EXT-3189: Fix tab order and location of Grid pulldown.

The (optional) Grid pulldown on the login screen is now located below
the Starting Location pulldown, rather than below the Last Name text
entry field. The tab order is also now more obvious.

indra/newview/skins/default/xui/en/panel_login.xml

@@ -75,16 +75,6 @@
      tool_tip="[SECOND_LIFE] Last Name"
      top_delta="0"
      width="135" />
-      <combo_box
-     allow_text_entry="true"
-     font="SansSerifSmall"
-     follows="left|bottom"
-     height="23"
-     layout="topleft"
-     top="60"
-     name="server_combo"
-     width="135"
-     visible="false" />
      <text
      follows="left|bottom"
      font="SansSerifSmall"
@@ -161,6 +151,16 @@
          name="Typeregionname"
          value="" />
     </combo_box>
+    <combo_box
+     allow_text_entry="true"
+     font="SansSerifSmall"
+     follows="right|bottom"
+     height="23"
+     layout="topleft"
+     top_pad="2"
+     name="server_combo"
+     width="135"
+     visible="false" />
     <text
      follows="right|bottom"
      font="SansSerifSmall"