Support kagemai issue tracker

[Nazo]

kagemai(*1) is opensource issue tracker(*2) used by some Japanese OSS projects:
- kagemai: http://www.daifukuya.com/kagemai/guest.rbx?project=kagemai&action=top
- ONScripter: http://ponytail.jpn.org/kagemai/html/guest.cgi?project=ONScripter&action=top
- Vine Linux: http://bts.vinelinux.org/guest.cgi?project=VineLinux&action=top
- Momonga Linux: http://developer.momonga-linux.org/kagemai/guest.cgi?project=momongaja&action=top
- QMAIL3: http://q3.snak.org/bts/guest.cgi?project=Q3&action=top

Launchpad should be able to monitor issues tracked on kagemai.

*1 http://www.daifukuya.com/kagemai/
*2 https://launchpad.net/ubuntu/+source/kagemai/