thii

extension NSUUID {
    public class func shortUUID() -> String {
        let uuid = NSUUID().UUIDString
        let indexOfDash = uuid.rangeOfString("-")!.startIndex
        return uuid.substringToIndex(indexOfDash)
    }
}

thii

import Foundation

struct AppVersion {
    static func version() -> String? {
        return NSBundle.mainBundle().infoDictionary?["CFBundleShortVersionString"] as? String
    }

    static func build() -> String? {
        return NSBundle.mainBundle().infoDictionary?["CFBundleVersion"] as? String
    }

thii

import Alamofire
import SwiftyJSON

extension Request {
    public static func SwiftyJSONResponseSerializer(
        options options: NSJSONReadingOptions = .AllowFragments)
        -> ResponseSerializer<JSON, NSError>
    {
        return ResponseSerializer { _, _, data, error in
            guard error == nil else { return .Failure(error!) }

thii

import UIKit

class DismissSegue: UIStoryboardSegue {
    override func perform() {
        let sourceViewController = self.sourceViewController as UIViewController
        sourceViewController.presentingViewController?.dismissViewControllerAnimated(true, completion: nil)
    }
}