Fixing like / dislike trigger. Also updating the .alfredworkflow because action names were wrong:

if action = "prevSong"  WAS if action = "prev" which didn't work.
if action = "nextSong"  WAS if action = "next" which didn't work.
Merge pull request #3 from mortfrog/master

Fixing like / dislike trigger. Also updating the .alfredworkflow...