Improved zip template generation script, to take a third argument for the required location of the output file. Updated build script to supply third argument. Standardised indentation in build.xml - 4 columns; no tabs.

@echo off
setlocal
if not defined HELIUM_HOME set HELIUM_HOME=%~dp0..\..\..\..\helium
echo %HELIUM_HOME%
rem call ..\..\build\env.bat
call %HELIUM_HOME%\hlm.bat %*
endlocal