Cookie Authentication

[bretterer]

Details: https://github.com/stormpath/stormpath-framework-spec/blob/master/cookie-authentication.md

• [ ] AccessTokenCookie path should be null by default
• [ ] RefreshTokenCookie path should be null by default
• [ ] Set domain on cookie config to application domain if null is defined in stormpath.php config file
• [ ] Automatically set secure config option for use if null is defined in stormpath.php config file.
• [ ] Automatically set expires flag for AccessTokenCookie
• [ ] Automatically set expires flag for RefreshTokenCookie
• [ ] Set the path to stormpath.web.basePath or / if null is defined