Some OUString simplifications
Some OUString simplifications

Change-Id: I6bdb45e5a4b84d0c851f07c4063b7d6d58d54a44

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