Made respondToSwipe method open and only requiring a direction.

The reason is that we might want to call it programatically, for example when pressing a button.

Author: Sundin

Example/Pods/Target Support Files/KSSwipeStack/Info.plist

@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'KSSwipeStack'
-  s.version          = '0.4.1'
+  s.version          = '0.4.2'
   s.summary          = 'A Swift card swiping library created by Kicksort Consulting AB'
 
 # This description is used to generate tags and improve search results.

KSSwipeStack.podspec

@@ -294,7 +294,7 @@ public class SwipeView: UIView {
     /// - Parameters:
     ///   - direction: The direction in which the view was swiped
     ///   - gesture: The gesture generating the swipe
-    func respondToSwipe(_ direction: SwipeDirection, gesture: UIGestureRecognizer) {
+    open func respondToSwipe(_ direction: SwipeDirection, gesture: UIGestureRecognizer? = nil) {
         guard let card = getCurrentCard() else {
             // TODO
             return