update translation

(Old svn revision: 30019)

po/ChangeLog

+2009-06-15  Mike Massonnet <mmassonnet@xfce.org>
+
+	* zh_CN.po: Simplified Chinese update (Hunt Xu)
+	* vi.po: Vietnamese translation update (Nguyễn Quốc Vinh)
+
 2009-05-29  Mike Massonnet <mmassonnet@xfce.org>
 
 	* ur_PK.po: Urdu Pakistan translation update (Muhammad Ali Makki)

po/LINGUAS

 # set of available languages (in alphabetic order)
-ar be ca cs da de dz el en_GB eo es et eu fi fr gl he hu id it ja ka ko ku lt lv mk nb nl nn pa pl pt pt_BR ro ru sk sq sv tr uk ur ur_PK zh_CN zh_TW
+ar be ca cs da de dz el en_GB eo es et eu fi fr gl he hu id it ja ka ko ku lt lv mk nb nl nn pa pl pt pt_BR ro ru sk sq sv tr uk ur ur_PK vi zh_CN zh_TW