Make utf8-string regular dependency
Make utf8-string regular dependency


The reason for this is that EWMH specification require 
utf8 encoded strings.

0/xmonad-contrib,mathstuf/xmonad-contrib,mathstuf/xmonad-contrib,0/xmonad-contrib,f1u77y/xmonad-contrib,ohlus/xmonad-contrib,mathstuf/xmonad-contrib,ohlus/xmonad-contrib,0/xmonad-contrib,xmonad/xmonad-contrib,CaptainPatate/xmonad-contrib,pjones/xmonad-test,CaptainPatate/xmonad-contrib,CaptainPatate/xmonad-contrib,f1u77y/xmonad-contrib,ohlus/xmonad-contrib,xmonad/xmonad-contrib