Merge pull request #53 from wanbok/master

Supports UIKit.UIGeometry for iOS

Author: devxoul

Sources/Then/Then.swift

@@ -22,6 +22,9 @@
 
 import Foundation
 import CoreGraphics
+#if os(iOS) || os(tvOS)
+  import UIKit.UIGeometry
+#endif
 
 public protocol Then {}
 
@@ -74,3 +77,9 @@ extension CGPoint: Then {}
 extension CGRect: Then {}
 extension CGSize: Then {}
 extension CGVector: Then {}
+
+#if os(iOS) || os(tvOS)
+  extension UIEdgeInsets: Then {}
+  extension UIOffset: Then {}
+  extension UIRectEdge: Then {}
+#endif