Bump to v1.4.0

DynamicColor.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'DynamicColor'
-  s.version          = '1.3.0'
+  s.version          = '1.4.0'
   s.license          = 'MIT'
   s.summary          = 'Yet another extension to manipulate colors easily in Swift'
   s.homepage         = 'https://github.com/yannickl/DynamicColor.git'

Example/DynamicColorExample/Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.2.1</string>
+	<string>1.4.0</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>

README.md

@@ -142,7 +142,7 @@ source 'https://github.com/CocoaPods/Specs.git'
 platform :ios, '8.0'
 
 use_frameworks!
-pod 'DynamicColor', '~> 1.3.0'
+pod 'DynamicColor', '~> 1.4.0'
 ```
 
 Install into your project:
@@ -173,7 +173,7 @@ $ brew install carthage
 To integrate `DynamicColor` into your Xcode project using Carthage, specify it in your `Cartfile` file:
 
 ```ogdl
-github "yannickl/DynamicColor" >= 1.3.0
+github "yannickl/DynamicColor" >= 1.4.0
 ```
 
 #### Manually