.gitignore for NetBeans metadata
Bugfix in IDPException::__construct()
Added optional Oauth2AuthorizationRequiredException instead of straightforward redirection - this behaviour is preferable in many frameworks; minor bugfixes in IdentityProvider.
Namespace fixes; some formatting fixes.
Added fields to User: city, country, sex, birthday.
Added Vkontakte provider (VK.com)
Bugfix in IdentityProvider (unable to send GET request)
Minor fixes
Added simple tool for manual testing provider classes