Make drop caps border a bit more robust
Make drop caps border a bit more robust

Decrease the minimum size of the drop caps letters to 0
and handle the case when padding is too big.

Change-Id: I10f76ddffe9d19f82afbe3226ebe3aa8ba70da89

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