Change default implementatino of isUndoable to true

Author: arneson

KSSwipeStack.podspec

@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'KSSwipeStack'
-  s.version          = '0.4.0'
+  s.version          = '0.4.1'
   s.summary          = 'A Swift card swiping library created by Kicksort Consulting AB'
 
 # This description is used to generate tags and improve search results.

KSSwipeStack/Classes/SwipableView.swift

@@ -67,6 +67,6 @@ open class SwipableView: UIView {
      Should return whether or not the user is to be allowed to undo swiping this card.
      */
     open func isUndoable() -> Bool {
-        return false
+        return true
     }
 }