Build error: 'shared' is unavailable: Use view controller based solutions where appropriate instead.

[Michael Harrington]

Pods/WKZombie/Sources/WKZombie/Renderer.swift:91:47: error: 'shared' is unavailable: Use view controller based solutions where appropriate instead.
                if let window = UIApplication.shared.keyWindow {
                                              ^~~~~~

UIKit.UIApplication:5:20: note: 'shared' has been explicitly marked unavailable here
    open class var shared: UIApplication { get }

PODS:
  - hpple (0.2.0)
  - WKZombie (1.1.0):
    - hpple (= 0.2.0)

iOS 11.1
Xcode 9.1

[Marius Landwehr]

Fixed in #80