Some GUI improvements.

http://developer.gnome.org/projects/gup/hig/2.0/menus-design.html

Label the menu item with a trailing ellipsis ("...") only if the command
requires further input from the user before it can be performed. Do not
add an ellipsis to items that only present a confirmation dialog (such
as Delete), or that do not require further input (such as Properties,
Preferences or About).

data/glade/account_context_menu.glade

@@ -27,7 +27,7 @@
       <widget class="GtkImageMenuItem" id="start_chat_menuitem">
         <property name="visible">True</property>
         <property name="events">GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK</property>
-        <property name="label" translatable="yes">_Start Chat</property>
+        <property name="label" translatable="yes">_Start Chat...</property>
         <property name="use_underline">True</property>
         <child internal-child="image">
           <widget class="GtkImage" id="menu-item-image7">
@@ -42,7 +42,7 @@
     <child>
       <widget class="GtkImageMenuItem" id="join_group_chat_menuitem">
         <property name="visible">True</property>
-        <property name="label" translatable="yes">Join _Group Chat</property>
+        <property name="label" translatable="yes">Join _Group Chat...</property>
         <property name="use_underline">True</property>
         <child internal-child="image">
           <widget class="GtkImage" id="image1236">
@@ -61,7 +61,7 @@
     <child>
       <widget class="GtkImageMenuItem" id="add_contact_menuitem">
         <property name="visible">True</property>
-        <property name="label" translatable="yes">_Add Contact</property>
+        <property name="label" translatable="yes">_Add Contact...</property>
         <property name="use_underline">True</property>
         <child internal-child="image">
           <widget class="GtkImage" id="image1238">
@@ -89,7 +89,7 @@
     <child>
       <widget class="GtkImageMenuItem" id="execute_command_menuitem">
         <property name="visible">True</property>
-        <property name="label" translatable="yes">_Execute Command</property>
+        <property name="label" translatable="yes">_Execute Command...</property>
         <property name="use_underline">True</property>
         <child internal-child="image">
           <widget class="GtkImage" id="image1246">
@@ -115,7 +115,7 @@
     <child>
       <widget class="GtkImageMenuItem" id="edit_account_menuitem">
         <property name="visible">True</property>
-        <property name="label" translatable="yes">_Modify Account...</property>
+        <property name="label" translatable="yes">_Modify Account</property>
         <property name="use_underline">True</property>
         <child internal-child="image">
           <widget class="GtkImage" id="image1240">

data/glade/advanced_menuitem_menu.glade

@@ -11,7 +11,7 @@
     </child>
     <child>
       <widget class="GtkMenuItem" id="privacy_lists_menuitem">
-        <property name="label" translatable="yes">Edit _Privacy Lists</property>
+        <property name="label" translatable="yes">Edit _Privacy Lists...</property>
         <property name="use_underline">True</property>
       </widget>
     </child>
@@ -28,7 +28,7 @@
             <child>
               <widget class="GtkImageMenuItem" id="send_server_message_menuitem">
                 <property name="tooltip" translatable="yes">Sends a message to users currently connected to this server</property>
-                <property name="label" translatable="yes">_Send Server Message</property>
+                <property name="label" translatable="yes">_Send Server Message...</property>
                 <property name="use_underline">True</property>
                 <child internal-child="image">
                   <widget class="GtkImage" id="image1468">
@@ -47,14 +47,14 @@
             <child>
               <widget class="GtkMenuItem" id="set_motd_menuitem">
                 <property name="tooltip" translatable="yes">Sets Message of the Day</property>
-                <property name="label" translatable="yes">Set MOTD</property>
+                <property name="label" translatable="yes">Set MOTD...</property>
                 <property name="use_underline">True</property>
               </widget>
             </child>
             <child>
               <widget class="GtkMenuItem" id="update_motd_menuitem">
                 <property name="tooltip" translatable="yes">Updates Message of the Day</property>
-                <property name="label" translatable="yes">Update MOTD</property>
+                <property name="label" translatable="yes">Update MOTD...</property>
                 <property name="use_underline">True</property>
               </widget>
             </child>

data/glade/chat_context_menu.glade

@@ -135,7 +135,7 @@
   <child>
     <widget class="GtkImageMenuItem" id="add_to_roster_menuitem">
       <property name="visible">True</property>
-      <property name="label" translatable="yes">_Add to Roster</property>
+      <property name="label" translatable="yes">_Add to Roster...</property>
       <property name="use_underline">True</property>
 
       <child internal-child="image">

data/glade/gc_control_popup_menu.glade

@@ -5,7 +5,7 @@
   <widget class="GtkMenu" id="gc_control_popup_menu">
     <child>
       <widget class="GtkImageMenuItem" id="change_nick_menuitem">
-        <property name="label" translatable="yes">Change _Nickname</property>
+        <property name="label" translatable="yes">Change _Nickname...</property>
         <property name="use_underline">True</property>
         <child internal-child="image">
           <widget class="GtkImage" id="image1409">
@@ -28,7 +28,7 @@
             <property name="events">GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK</property>
             <child>
               <widget class="GtkImageMenuItem" id="change_subject_menuitem">
-                <property name="label" translatable="yes">Change _Subject</property>
+                <property name="label" translatable="yes">Change _Subject...</property>
                 <property name="use_underline">True</property>
                 <child internal-child="image">
                   <widget class="GtkImage" id="image1408">
@@ -41,7 +41,7 @@
             </child>
             <child>
               <widget class="GtkImageMenuItem" id="configure_room_menuitem">
-                <property name="label" translatable="yes">Configure _Room</property>
+                <property name="label" translatable="yes">Configure _Room...</property>
                 <property name="use_underline">True</property>
                 <child internal-child="image">
                   <widget class="GtkImage" id="image1406">

data/glade/roster_contact_context_menu.glade

@@ -20,7 +20,7 @@
     <child>
       <widget class="GtkImageMenuItem" id="send_single_message_menuitem">
         <property name="visible">True</property>
-        <property name="label" translatable="yes">Send Single _Message</property>
+        <property name="label" translatable="yes">Send Single _Message...</property>
         <property name="use_underline">True</property>
         <child internal-child="image">
           <widget class="GtkImage" id="image1703">
@@ -34,7 +34,7 @@
     <child>
       <widget class="GtkImageMenuItem" id="send_file_menuitem">
         <property name="visible">True</property>
-        <property name="label" translatable="yes">Send _File</property>
+        <property name="label" translatable="yes">Send _File...</property>
         <property name="use_underline">True</property>
         <child internal-child="image">
           <widget class="GtkImage" id="image1706">
@@ -103,7 +103,7 @@
             <property name="events">GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK</property>
             <child>
               <widget class="GtkImageMenuItem" id="rename_menuitem">
-                <property name="label" translatable="yes">_Rename</property>
+                <property name="label" translatable="yes">_Rename...</property>
                 <property name="use_underline">True</property>
                 <child internal-child="image">
                   <widget class="GtkImage" id="image1705">
@@ -116,7 +116,7 @@
             </child>
             <child>
               <widget class="GtkImageMenuItem" id="edit_groups_menuitem">
-                <property name="label" translatable="yes">Edit _Groups</property>
+                <property name="label" translatable="yes">Edit _Groups...</property>
                 <property name="use_underline">True</property>
                 <child internal-child="image">
                   <widget class="GtkImage" id="menu-item-image21">
@@ -130,7 +130,7 @@
             </child>
             <child>
               <widget class="GtkImageMenuItem" id="assign_openpgp_key_menuitem">
-                <property name="label" translatable="yes">Assign Open_PGP Key</property>
+                <property name="label" translatable="yes">Assign Open_PGP Key...</property>
                 <property name="use_underline">True</property>
                 <signal name="activate" handler="on_assign_openpgp_key_menuitem_activate"/>
                 <child internal-child="image">
@@ -146,7 +146,7 @@
               <widget class="GtkImageMenuItem" id="set_custom_avatar_menuitem">
                 <property name="visible">True</property>
                 <property name="events">GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK</property>
-                <property name="label" translatable="yes">Set Custom _Avatar</property>
+                <property name="label" translatable="yes">Set Custom _Avatar...</property>
                 <property name="use_underline">True</property>
                 <child internal-child="image">
                   <widget class="GtkImage" id="menu-item-image20">
@@ -161,7 +161,7 @@
             <child>
               <widget class="GtkImageMenuItem" id="add_special_notification_menuitem">
                 <property name="no_show_all">True</property>
-                <property name="label" translatable="yes">Add Special _Notification</property>
+                <property name="label" translatable="yes">Add Special _Notification...</property>
                 <property name="use_underline">True</property>
                 <child internal-child="image">
                   <widget class="GtkImage" id="image1708">
@@ -269,7 +269,7 @@
             </child>
             <child>
               <widget class="GtkImageMenuItem" id="add_to_roster_menuitem">
-                <property name="label" translatable="yes">_Add to Roster</property>
+                <property name="label" translatable="yes">_Add to Roster...</property>
                 <property name="use_underline">True</property>
                 <child internal-child="image">
                   <widget class="GtkImage" id="image1716">

data/glade/roster_window.glade

@@ -31,7 +31,7 @@
                     <child>
                       <widget class="GtkImageMenuItem" id="new_chat_menuitem">
                         <property name="visible">True</property>
-                        <property name="label" translatable="yes">_Start Chat</property>
+                        <property name="label" translatable="yes">_Start Chat...</property>
                         <property name="use_underline">True</property>
                         <child internal-child="image">
                           <widget class="GtkImage" id="image1605">
@@ -44,7 +44,7 @@
                     </child>
                     <child>
                       <widget class="GtkImageMenuItem" id="send_single_message_menuitem">
-                        <property name="label" translatable="yes">_Send Single Message</property>
+                        <property name="label" translatable="yes">_Send Single Message...</property>
                         <property name="use_underline">True</property>
                         <child internal-child="image">
                           <widget class="GtkImage" id="menu-item-image5">
@@ -58,7 +58,7 @@
                     <child>
                       <widget class="GtkImageMenuItem" id="join_gc_menuitem">
                         <property name="visible">True</property>
-                        <property name="label" translatable="yes">Join _Group Chat</property>
+                        <property name="label" translatable="yes">Join _Group Chat...</property>
                         <property name="use_underline">True</property>
                         <child internal-child="image">
                           <widget class="GtkImage" id="image1606">
@@ -77,7 +77,7 @@
                     <child>
                       <widget class="GtkImageMenuItem" id="add_new_contact_menuitem">
                         <property name="visible">True</property>
-                        <property name="label" translatable="yes">Add _Contact</property>
+                        <property name="label" translatable="yes">Add _Contact...</property>
                         <property name="use_underline">True</property>
                         <child internal-child="image">
                           <widget class="GtkImage" id="image1607">