[app] Tags for Easy App Store Linking

[arn]

Added a BBCode to make app linking easier:

Uses http://linktoapp.com

Example Code:
PapiJump
Super Monkey Ball
IUGO's game


Results:
PapiJump
Super Monkey Ball
IUGO's game

If the app name isn't exact it goes to iTunes search:

Example: Asphalt

[BrettArchibald]

Nice one, thanks. :)
Hopefully this will encourage more people to put links to games they mention in their forum posts...