fixed bugs in utf8_resize, utf8_iter and utf8_get.
fixed bugs in utf8_resize, utf8_iter and utf8_get.


danteinforno/neko,DanielUranga/neko,danteinforno/neko,DanielUranga/neko,danteinforno/neko,pperidont/neko,pperidont/neko,DanielUranga/neko