Fix Swift 5 compatibility. (#401)

AlamofireImage.podspec

@@ -17,5 +17,5 @@ Pod::Spec.new do |s|
   s.tvos.deployment_target = '10.0'
   s.watchos.deployment_target = '3.0'
 
-  s.dependency 'Alamofire', '>= 5.0.1', '< 6.0.0'
+  s.dependency 'Alamofire', '>= 5.0.2', '< 6.0.0'
 end

Cartfile

@@ -1 +1 @@
-github "Alamofire/Alamofire" ~> 5.0.1
+github "Alamofire/Alamofire" ~> 5.0.2

Cartfile.resolved

@@ -1 +1 @@
-github "Alamofire/Alamofire" "5.0.1"
+github "Alamofire/Alamofire" "5.0.2"

Package.swift

@@ -32,7 +32,7 @@ let package = Package(name: "AlamofireImage",
                                   .watchOS(.v3)],
                       products: [.library(name: "AlamofireImage", targets: ["AlamofireImage"])],
                       dependencies: [.package(url: "https://github.com/Alamofire/Alamofire.git",
-                                              from: "5.0.1")],
+                                              from: "5.0.2")],
                       targets: [.target(name: "AlamofireImage",
                                         dependencies: ["Alamofire"],
                                         path: "Source")],

Source/UIImage+AlamofireImage.swift

@@ -382,7 +382,7 @@ extension AlamofireExtension where ExtendedType: UIImage {
 extension UIImage {
     @available(*, deprecated, message: "Replaced by `image.af.imageFiltered(withCoreImageFilter:parameters:)`")
     public func af_imageFiltered(withCoreImageFilter name: String, parameters: [String: Any]? = nil) -> UIImage? {
-        af.imageFiltered(withCoreImageFilter: name, parameters: parameters)
+        return af.imageFiltered(withCoreImageFilter: name, parameters: parameters)
     }
 }