More work on record payload processing.
Add FxASwiftly-Bridging-Header.h to allow use of system crypto libraries.
Import CommonCrypto into bridging header.
Add HMAC and test.
Implement record decryption.
Move crypto tests into CryptoTests.swift.
Move utilities to Bytes.swift.
Refactor decrypt, implement crypt.
Base64 util in tests.
Test for encryption.
HMAC -> NSData.
Base64 and encryption key management.
Hacking on whole-record decryption.
Add email, password, error output, and sign in buttons to main storyboard.
Remove FxA/Foo.
Add enough of stefan's Objective-C library to generate BrowserID assertions.
Add Alamofire.
Base16.