Bump version to 0.13.1

Author: hirohisa

ImageLoader.podspec

@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
 
   s.name         = "ImageLoader"
-  s.version      = "0.13.0"
+  s.version      = "0.13.1"
   s.summary      = "A lightweight and fast image loader for iOS written in Swift."
   s.description  = <<-DESC
                    ImageLoader is an instrument for asynchronous image loading written in Swift. It is a lightweight and fast image loader for iOS.

README.md

@@ -29,11 +29,11 @@ Requirements
 
 ImageLoader | Xcode | Swift
 ----------- | ----- | -----
-0.9.x       | 7.3.1 | 2.2
-0.10.0      | 8.0+  | 2.3
+0.13.+      | 9.0+  | 4.0
+0.12.+      | 8.1+  | 3.0
 0.11.+      | 8.0+  | 3.0
-0.12.+      | 8.1+  | 3.0.1
-0.13.+      | 9.0+  | 4.0.0
+0.10.0      | 8.0+  | 2.3
+0.9.x       | 7.3.1 | 2.2
 
 If your project's target need to support iOS5.x or 6.x, use [ImageLoader](https://github.com/hirohisa/ImageLoader). It's A lightweight and fast image loader for iOS written in Objective-C.