Cocoapods support

CryptoSwift.podspec

@@ -0,0 +1,15 @@
+Pod::Spec.new do |s|
+  s.name         = "CryptoSwift"
+  s.version      = "0.0.3"
+  s.summary      = "Cryptography in Swift"
+  s.description  = "Cryptography functions and helpers for Swift implemented in Swift. SHA, MD5, CRC, AES, Poly1305, ChaCha20."
+  s.homepage     = "https://github.com/krzyzanowskim/CryptoSwift"
+  s.license      = {:type => "Attribution License", :file => "LICENSE"}
+  s.source       = { :git => "https://github.com/krzyzanowskim/CryptoSwift.git", :tag => "#{s.version}" }
+  s.authors      = {'Marcin Krzyżanowski' => 'marcin.krzyzanowski@hakore.com'}
+  s.social_media_url   = "https://twitter.com/krzyzanowskim"
+  s.ios.platform  = :ios, '8.0'
+  s.osx.platform  = :osx, '10.9'
+  s.source_files  = "CryptoSwift/*"
+  s.requires_arc = true
+end