Added batch file for running 'BuildAll'

build/BuildAll.bat

@@ -0,0 +1,11 @@
+:BEGIN
+@ECHO OFF
+%WINDIR%\Microsoft.NET\Framework\v4.0.30319\msbuild build.csproj /m /t:Build /p:BuildConfiguration=Debug
+IF ERRORLEVEL 1 GOTO END
+
+:SILVERLIGHT2
+ECHO RONG!
+%WINDIR%\Microsoft.NET\Framework\v4.0.30319\msbuild build.csproj /m /t:Build /p:BuildConfiguration=Debug_Silverlight2
+
+:END
+PAUSE