sourcesync template - Updated generation of 'changes.txt' so that it does a 'follow' rather than being restricted to a 'branch'. This enables us to see the history if the previous tag was an ancestor but on a different branch.

@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