Update project layout for SwiftPM support

.gitignore

@@ -32,3 +32,7 @@ Pods/
 Carthage/Checkouts
 Carthage/Build
 .DS_Store
+
+# SPM
+#
+Packages

.swift-version

@@ -1 +1 @@
-3.0
+3.0.1

.travis.yml

@@ -5,4 +5,5 @@ osx_image: xcode8
 script: 
   - set -o pipefail
   - xcodebuild build-for-testing test-without-building -workspace Action.xcworkspace -scheme Action -sdk iphonesimulator -destination "name=iPhone SE" | xcpretty -c
+  - swift build
 

Package.swift

@@ -0,0 +1,10 @@
+import PackageDescription
+
+let package = Package(
+    name: "Action",
+    targets: [],
+    dependencies: [
+        .Package(url: "https://github.com/ReactiveX/RxSwift.git", majorVersion: 3)
+    ]
+)
+

AlertAction.swift → Sources/Action/UIKitExtensions/AlertAction.swift

@@ -1,3 +1,4 @@
+#if os(iOS) || os(tvOS)
 import UIKit
 import RxSwift
 import RxCocoa
@@ -62,3 +63,4 @@ public extension Reactive where Base: UIAlertAction {
 		}
 	}
 }
+#endif

UIBarButtonItem+Action.swift → Sources/Action/UIKitExtensions/UIBarButtonItem+Action.swift

@@ -1,3 +1,4 @@
+#if os(iOS) || os(tvOS)
 import UIKit
 import RxSwift
 import RxCocoa
@@ -37,3 +38,4 @@ public extension Reactive where Base: UIBarButtonItem {
         }
     }
 }
+#endif

UIButton+Rx.swift → Sources/Action/UIKitExtensions/UIButton+Rx.swift

@@ -1,3 +1,4 @@
+#if os(iOS) || os(tvOS)
 import UIKit
 import RxSwift
 import RxCocoa
@@ -51,3 +52,4 @@ public extension Reactive where Base: UIButton {
         }
     }
 }
+#endif