Changed the Persona application process a bit.
Changed the Persona application process a bit.

The header and footer files of the selected theme are downloaded and
saved in the Theme's own folder and applied.

Change-Id: Ie974c9bedc01a20c70cb342196fb60550cb39a0f

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