Update content_script.js
Update background.js
Update background.js
Tyring to get the playlist
Merge pull request #2 from spacewander/master

add support for 5Sing.com
add support for 5sing.com and grooveshark.com
add support for 5sing.com and grooveshark.com
detect the music duration to see if it is ad.
removed test code
Update background.js
Update background.js
Delete IDE files
Remove Sand Box
Filter mp4 music for website like http://songza.com/
Specific mp4 filter only for songza.com
add support for 5sing.com and grooveshark.com
xiami update
Add filter to ads in douban fm
block ad form douban
Add accurately filter for douban ads