adding request headers as per requirement from discogs. http://www.discogs.com/developers/accessing.html#clients and http://www.discogs.com/forum/thread/53948738c131f36606ed219e .
adding request headers as per requirement from discogs. http://www.discogs.com/developers/accessing.html#clients and http://www.discogs.com/forum/thread/53948738c131f36606ed219e .

jesseward/discogstagger