patch from: Mikhail Gusarov <dottedmag@dottedmag.net>
patch from: Mikhail Gusarov <dottedmag@dottedmag.net>

evas_common_font_utf8_get_prev currently works correctly only on an
ASCII symbols. For non-ASCII it just returns random garbage somehow
constructed from a string.

Attached patch makes it work according to the comment at the start.



git-svn-id: 24a995eca3b83137dd7eab3408044d7832e202f7@41292 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33

antognolli/Evas,antognolli/Evas,antognolli/Evas,antognolli/Evas