[myspace] Redirect to other extractors
There are many songs just linked from Vevo/YouTube to MySpace.
Vevo example: https://myspace.com/threedaysgrace/music/song/animal-i-have-become-28400208-28218041
YouTube example: https://myspace.com/starset2/music/song/first-light-95799905-106964426
[myspace] Update tests