Adding rules for some french sites : melty.fr, premiere.fr, jeuxvideo.com, gamblog.fr & lesinrocks.com

[ALSai]

[typpo]

Thank you for adding all these rules! This is excellent.

A previous contributor added the "French media" section at the bottom of rules.js. I noticed there is already a rule for lesinrocks.com. Would you mind consolidating the duplicate rule? :)