Made the generation of the syncing scripts more regular, and ensured that it all works and makes sense even when sf.spec.sourcesync.enable is false.
@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