• Adds SHA3 Keccak variants
• Adds String.bytes helper to convert String to array of bytes
• Improves AES performance
• Speeds up compilation times with Swift 4
• Fixes: Blowfish minimum key size is 5
• Removes Ciphers "iv" parameter (value moved to BlockMode)
• BlockMode uses associated value for IV value where apply e.g. .CBC(iv: ivbytes)
• Refactors internal hacks no longer needed with Swift 4