Adjusted invocation of ConE so it doesn't completely fail if /epoc32/rom/config/ does not exist.
Should get the CI build running again.
@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