Fix ATOM feed title encoding
Fix ATOM feed title encoding

Was HTML-encoded instead of plain Unicode.
Fixed only for feed_mode. Probably wrong as well for non_feed mode (not
sure how to test)

annando/friendica,tobiasd/friendica,friendica/friendica,friendica/friendica,fabrixxm/friendica,fabrixxm/friendica,annando/friendica,annando/friendica,fabrixxm/friendica,tobiasd/friendica,annando/friendica,friendica/friendica,tobiasd/friendica,tobiasd/friendica,tobiasd/friendica,fabrixxm/friendica,annando/friendica,fabrixxm/friendica,friendica/friendica,friendica/friendica