CryptoSwift/CHANGELOG

- Padding setup is now part of cipher constructor
- Added PBKDF2 http://tools.ietf.org/html/rfc2898#section-5.2
- Add BlockCipher protocol
- Rename Cipher -> CipherProtocol
- Remove build-frameworks.sh script
- Keep sensitive data in memory with SecureBytes
- Allows direct use of 

0.3.1
- replace deprecated Bit with new enum.

0.3
- Swift 2.2 support
- use generators for cipher block modes should reduce memory overload.
- add OFB block mode
- add PCBC block mode
- String.decryptBase64ToString to decrypt Base64 encoded strings
- broke up complicated expressions which were taking ages to compile

0.2.3
- enable bitcode setting for Debug on an Apple TV
- faster compilation times
- improve padding functions

0.2.2
- Fix ChaCha20 cipher
- Replace for(;;) with for-in
- Workaround for "NSString are not yet implicitly convertible to String" on Linux

0.2.1
- Fix linux build
- re-add umbrella header

0.2
- Rabbit cipher (RFC4503)
- Linux Swift support
- Swift Package Manager support
- tvOS support
- Add optional seed to CRC
- Add umbrella header (CryptoSwift.h)
- Fix AES in CTR mode
- Fix no padding support for CTR and CFB block modes
- Fix access to AES.Error and ChaCha20.Error

0.1.1
- Fix Cococapods package (missing Foundation integration)

0.1.0
- Major performance improvements.
- Transition from Optionals to throw error.
- Replace enum Cipher with protocol for ciphers.
- Added CRC16
- Fixed AES CFB decryption
- Drop internal "Foundation" dependency, nonetheless it is supported as usual.

0.0.16
- Critical fix for private "md5" selector issue (#135)

0.0.15
- Fix 32-bit CTR block mode
- Carthage support update
- Mark as App-Extension-Safe API

0.0.14
- hexString -> toHextString() #105
- CTR (Counter mode)
- Hex string is lowercase now
- Carthage support
- Tests update
- Swift 2.0 support - overall update