"Always save as" filter names

the listbox in the Tools->Options->Load/Save->General->AlwaysSaveAs listbox
did not prefer the localized UIName, so sometimes the internal filter name
was shown in the user interface even when an UIName was provided.

Patch by: Tsutomu Uchino <hanya.runo@gmail.com>

(cherry picked from commit 963530a3)

Conflicts:
	cui/source/options/optsave.cxx

Change-Id: Id83dd0859275a8b0ac52bfd65bd1fd7dcfb4362e