Use AQToolkit CommonCrypto.
Support SHA512.
Support secret password / salt.
Add help skeleton.
Sync UserDefaults.
Passwords help.
Bug: check that hash exists, not password.
Bug: get data from the keychain, not UserDefaults.
Open source licenses.
Password cleanup.
Help cleanup.
Update tests for SHA.
Cleanup.
Move Settings/Info to the navigation bar.
Add StatusImageView.
Add default defaults.
Move Settings/About buttons back to the bottom.
v3.0.0.
Merge branch 'v3.0'