Better error reporting
Better error reporting

(The MESSAGE_CORRUPTED_FILTERCONFIG in the exception's Message would not be seen
by end-users anyway, so better put something more useful in there.)

Change-Id: I5c677a894a8b6fcfb61d24c59d45b2cbc53e7a60

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