Use a proper folder as "user installation" when sandboxed
Use a proper folder as "user installation" when sandboxed

A sandboxed soffice process (runnin smoketest) has no access to workdir.

Change-Id: I62ef94282df37ea710735f1305c1d95dd2b0a304

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