Use Coverhelper at Pornstar Toplist

Delete Cover Code and use Cover Helper
Entry "Pornstar Toplist" now after "HD"
Merge pull request #43 from lolly/Pornhub-cleanup

Use Coverhelper at Pornstar Toplist
fix nowvideo.[sx|ch]
use coverhelper
Merge pull request #1 from dhwz/master

Merge from dhwz base