Fixed Requirement:
Merge pull request #12 from hokorobi/master

Fixed J6uil.txt Requirement:
Merge pull request #9 from Shougo/master

Fixed J6uil#get_rooms() initialization.
fixed archive line #11 #14
Ignore unconvertible icons
Merge pull request #15 from anekos/fix/ignore-unconvertible-icons

Ignore unconvertible icons
fixed s:update_icon arguments
move s:update_icon function position
updated vital