TableRef: proper unescapeTableRefColumnSpecifier()
TableRef: proper unescapeTableRefColumnSpecifier()

Change-Id: Id3b0a776f85b36c399a818ec1575a63ba250e318

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