Made it intelligent so that when, for example, the dubbing file doesn't exist,
we don't fail, but instead always show subtitles even if the GUI settings
says dubbing only, etc.
svn-id: r45002
We initialize them in the DraciEngine constructor, but don't play any sounds
yet. Checked that it works for all existing sound files (required several
work-arounds against unspoken specification).
When copying the interface from barchive.h, I decided to remove some const's
from there, because getFile() wasn't really behaving like const.
Removed some static Common::String instances.
svn-id: r44953
