Add clusty.com based on infospace

sample url: 
http://www.clusty.com/search?input-form=clusty-simple&v%3Asources=webplus-ns-uf&v%3Aproject=clusty-original&query=Orange+being+dificult+when+unlocking+iPhone+4S+avforums
Merge pull request #12 from 235/patch-2

Add clusty.com based on infospace