The codeset of the Bulgarian translation was incorrectly specified as
ISO-8859-1 instead of CP1251. This led to incorrect transcoding to
UTF-8 and the display of wrong characters in the Fluxbox menu.
I needed to add explicit $(srcdir) in Makefiles when referencing to Translation.m.
I also removed generated-*.m files from the tree since they can be easily regenerated (and they
were confusing VPATH logic). They can be added to the distribution tarball later if needed (but
hopefully everyone has iconv).
