pass the first following parameter as PARAS

add messages_{langcode}.only support to only update for a specified language

apps/routerconsole/java/bundle-messages.bat

@@ -1,6 +1,26 @@
+@echo off
+set Callfrom=%cd%
+set Paras=%1
+
 rem before calling make sure you have msys and mingw 's "bin" path 
 rem in your current searching path
 rem type "set path" to check 
-@echo off
-set Callfrom=%cd%
-sh --login %cd%\bmsg.sh
+if not exist ..\locale\*.only goto updateALL
+
+rem put a messages_xx.only(eg messages_zh.only) into locale folder
+rem this script will only touch the po file(eg zh) you specified, leaving other po files untact.
+
+for %%i in (..\locale\*.only) do set PO=%%~ni
+echo [Notice] Yu choose to Ony update the choosen file: %PO%.po 
+for %%i in (..\locale\*.po) do if not %%~ni==%PO% ren %%i %%~ni.po-
+
+call sh --login %cd%\bmsg.sh
+
+for %%i in (..\locale\*.po-) do if not %%~ni==%PO% ren %%i %%~ni.po
+goto end
+
+:updateALL
+call sh --login %cd%\bmsg.sh
+
+:end
+echo End of Message Bundling