convert-to : display error messages in console fdo#88326
convert-to : display error messages in console fdo#88326

- source file does not exist
- requested export filter does not exist and we use default filter (still process though)

Change-Id: I92031ea305e81927357acfc352dbe5a5da205b0d

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