Update xdg-utils to the latest version available in git.

third_party/xdg-utils/scripts/xdg-email.in

 #!/bin/sh
 #---------------------------------------------
 #   xdg-email
 #
 #   Utility script to open the users favorite email program, using the
 #       RFC 2368 mailto: URI spec
 #
 #   Refer to the usage() function below for usage.
 #
 #   Copyright 2009-2010, Fathi Boudra <fabo@freedesktop.org>
@@ skipping 102 matching lines @@
     LC_ALL=C.UTF-8 $KMAILSERVICE "$1"
     kfmclient_fix_exit_code $?
 
     if [ $? -eq 0 ]; then
         exit_success
     else
         exit_failure_operation_failed
     fi
 }
 
+open_gnome3()
+{
+    local client
+    local desktop
+    desktop=`xdg-mime query default "x-scheme-handler/mailto"`
+    client=`desktop_file_to_binary "$browser"`
+    echo $client | grep thunderbird > /dev/null 2>&1
+    if [ $? -eq 0 ] ; then
+        run_thunderbird "$client" "$1"
+    fi
+
+    if gvfs-open --help 2>/dev/null 1>&2; then
+        DEBUG 1 "Running gvfs-open \"$1\""
+        gvfs-open "$1"
+    else
+        DEBUG 1 "Running gnome-open \"$1\""
+        gnome-open "$1"
+    fi
+
+    if [ $? -eq 0 ]; then
+        exit_success
+    else
+        exit_failure_operation_failed
+    fi
+}
+
 open_gnome()
 {
     local client
     client=`gconftool-2 --get /desktop/gnome/url-handlers/mailto/command | cut -d ' ' -f 1` || ""
     echo $client | grep thunderbird > /dev/null 2>&1
     if [ $? -eq 0 ] ; then
         run_thunderbird "$client" "$1"
     fi
 
     if gvfs-open --help 2>/dev/null 1>&2; then
@@ skipping 220 matching lines @@
 
 case "$DE" in
     kde)
     open_kde "${mailto}"
     ;;
 
     gnome)
     open_gnome "${mailto}"
     ;;
 
+    gnome3)
+    open_gnome3 "${mailto}"
+    ;;
+
     xfce)
     open_xfce "${mailto}"
     ;;
 
     generic|lxde)
     open_generic "${mailto}"
     ;;
 
     *)
     exit_failure_operation_impossible "no method available for opening '${mailto}'"
     ;;
 esac