OAuthSwiftClient fix

[ozgurersil]

In OAuthSwiftClient.swift class:

in request function if the url contains latin chars, NSURL crashes. I fix and paste below

func request(url: String, method: String, parameters: Dictionary<String, AnyObject>, success: OAuthSwiftHTTPRequest.SuccessHandler?, failure: OAuthSwiftHTTPRequest.FailureHandler?) {
    if let url = NSURL(string: url.stringByAddingPercentEscapesUsingEncoding(NSUTF8StringEncoding)!)
    {
        let request = OAuthSwiftHTTPRequest(URL: url, method: method, parameters: parameters)
        if self.credential.oauth2 {
            request.headers = ["Authorization": "Bearer \(self.credential.oauth_token)"]
        } else {
            request.headers = ["Authorization": OAuthSwiftClient.authorizationHeaderForMethod(method, url: url, parameters: parameters, credential: self.credential)]
        }
        request.successHandler = success
        request.failureHandler = failure
        request.dataEncoding = dataEncoding
        request.encodeParameters = true
        request.start()
    }
}

thanks for the library,
it rocks

[phimage]

PR #71 opened