fix init and delete assgmt in SIOIndexHandler
fix init and delete assgmt in SIOIndexHandler

iLCSoft/LCIO,petricm/LCIO,iLCSoft/LCIO,petricm/LCIO,iLCSoft/LCIO,petricm/LCIO,iLCSoft/LCIO,iLCSoft/LCIO,petricm/LCIO,petricm/LCIO,petricm/LCIO,iLCSoft/LCIO