Authorizations.php

[apramana]

According to the Github docs, this is the call to check authorizations:

GET /applications/:client_id/tokens/:access_token

In the Authorizations.php file, this is what's being used:

GET /authorizations/:client_id/tokens/:access_token

I had to make this change to get token checking to work, so I'm assuming this isn't an alias.

[cursedcoder]

fixed in #277