Fixed the 'ignored' dislike bug!

[Many reviews](https://chrome.google.com/webstore/detail/flamite/kgobopgcnapcnblkpelgjjblnjjpgejk/reviews) have pointed out that this app doesn't let you 'dislike' (= swipe left) anyone... This bug is easily fixed by GETting '/pass/:id' instead of '/dislike/:id' as documented [here](https://gist.github.com/rtt/10403467#to-like-or-pass-a-user).