janitorial: more const, comments
janitorial: more const, comments

Change-Id: I5366840ab67fdf89575e890a0d97602b8e78f71a

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