PD FB login

REQUEST: https://perioddiary-api.nanobitgames.com/api/v2/sign_in/oauth
$ curl -i \
	-X POST \
	-H "X-USER-AGENT: Simulator;iOS 9.3;1.0" \
	-H "Content-Type: application/x-www-form-urlencoded; charset=utf-8" \
	-H "Accept-Language: hr-SA;q=1.0,en-SA;q=0.9,ar-SA;q=0.8,ja-SA;q=0.7" \
	-H "Accept-Encoding: gzip;q=1.0,compress;q=0.5" \
	-H "User-Agent: Period Diary Pro/co.infinum.Period-Diary (61; OS Verzija 9.3 (Izdanje 13E230))" \
	-d "device_id=f16Qa1U8IP1YKMK64O4W&lang=hr&oauth_token=EAADKhq883QMBAObKVPTnoz77EHu8vl6eL5O1LgDjpR18pcsPljW4nF2gQypNbZAzkFWr9Cii914F7vPUqmcrgS9OmHSxwPDl23ZBd2kh7sCYzZATxaMblrXq8LSOpFHRfqzObDvECwOwIZAWwpzQGZCWDw0npkidEkCAfFRlCEeLXoXVeIxlT26LZCamIHBWEZD" \
	"https://perioddiary-api.nanobitgames.com/api/v2/sign_in/oauth"

▿ Optional<NSHTTPURLResponse>
  - Some : <NSHTTPURLResponse: 0x7fda97398330> { URL: https://perioddiary-api.nanobitgames.com/api/v2/sign_in/oauth }
  { status code: 400, headers {
    "Cache-Control" = "no-cache";
    Connection = "keep-alive";
    "Content-Length" = 87;
    "Content-Type" = "application/json; charset=utf-8";
    "Current-Server-Timestamp" = 1479372703;
    Date = "Thu, 17 Nov 2016 08:51:43 GMT";
    Server = "nginx/1.8.1 + Phusion Passenger 4.0.60";
    Status = "400 Bad Request";
    "X-Content-Type-Options" = nosniff;
    "X-Frame-Options" = SAMEORIGIN;
    "X-Powered-By" = "Phusion Passenger 4.0.60";
    "X-Request-Id" = "501c1fb2-00d8-4d9a-9db0-6c45e3fb0cee";
    "X-Runtime" = "0.094839";
    "X-XSS-Protection" = "1; mode=block";
} }

▿ 2 elements
  ▿ [0] : 2 elements
    - .0 : "error_description"
    - .1 : E-mail ili lozinka su neispravni!
  ▿ [1] : 2 elements
    - .0 : "error"
    - .1 : invalid_credentials