Swift 4 release. Version 0.7.1

CryptoSwift.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "CryptoSwift"
-  s.version      = "0.7.1-alpha.1"
+  s.version      = "0.7.1"
   s.source       = { :git => "https://github.com/krzyzanowskim/CryptoSwift.git", :tag => "#{s.version}" }
   s.summary      = "Cryptography in Swift. SHA, MD5, CRC, PBKDF, Poly1305, HMAC, ChaCha20, Rabbit, Blowfish, AES."
   s.description  = "Cryptography functions and helpers for Swift implemented in Swift. SHA, MD5, PBKDF1, PBKDF2, CRC, Poly1305, HMAC, ChaCha20, Rabbit, Blowfish, AES."

README.md

@@ -109,9 +109,9 @@ In the project, you'll find [single scheme](http://promisekit.org/news/2016/08/M
 - Swift 1.2: branch [swift12](https://github.com/krzyzanowskim/CryptoSwift/tree/swift12) version <= 0.0.13
 - Swift 2.1: branch [swift21](https://github.com/krzyzanowskim/CryptoSwift/tree/swift21) version <= 0.2.3
 - Swift 2.2, 2.3: branch [swift2](https://github.com/krzyzanowskim/CryptoSwift/tree/swift2) version <= 0.5.2
-- Swift 3.1, branch [master](https://github.com/krzyzanowskim/CryptoSwift/tree/master) version <= 0.6.9
-- Swift 3.2, branch [develop](https://github.com/krzyzanowskim/CryptoSwift/tree/develop) version <= 0.7.0
-- Swift 4.0, branch [swift4](https://github.com/krzyzanowskim/CryptoSwift/tree/swift4) version <= 0.7.1
+- Swift 3.1, branch [swift3](https://github.com/krzyzanowskim/CryptoSwift/tree/swift3) version <= 0.6.9
+- Swift 3.2, branch [swift32](https://github.com/krzyzanowskim/CryptoSwift/tree/swift32) version = 0.7.0
+- Swift 4.0, branch [master](https://github.com/krzyzanowskim/CryptoSwift/tree/master) version >= 0.7.1
 
 #### CocoaPods