Update foursquareVenues.coffee

Fixed type error bug, and no ERROR returned from request bug. ERROR was always null. Foursquare always returns 200 unless its a 500 error. The real foursquare response code is in the meta attribute of the body response.
Update foursquareVenues.js

Rebuilt the package so that, the callbacks get called appropriately.
Merge pull request #9 from sourcec0de/master

Fixed type error String is not function, and callBack firing issue.