Rename: touhou_15_demo_character_(temporary) to seiran_(touhou)

Confirmed name from reitaisai and screens in multiple sources (Facebook, nico nico, twitter)

Edit** added for me, for better, delete is better this long tag

mass update touhou_15_demo_character_(temporary) -> seiran_(touhou)

Link to request

We should probably wait to make sure the confirmations aren't trolling though.

Here's the picture from reddit: http://i.imgur.com/YxpZ0is.jpg

Same pic, this one from Coolier:http://coolier.dip.jp/th_up4/img/th4_6113.jpg

The bulk update request #164 has been rejected.

I withdrew the request because it's already been moved, so there's no need for it anymore