add error checking into installer/filelist.pm
add error checking into installer/filelist.pm

Change-Id: Iccb314155ac70984fa70e7d1ec839edd9eb14270

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core