Remove Twtter adapter and TwitterAuthSA bridge
Change Odnoklassniki adapter according to the new work logic
Change Yandex adapter according to the new work logic
Refactoring...

Rename object SocialUser to SocialUserProfile;
Rename method Adapter::authenticate() to ::readUserProfile();
Rename method Adapter::getAuthUrl() to ::login()
(whose redirect to authUrl or return ::readUserProfile() when it`s redirected back);
Rename magic method Adapter::user to ::getUserProfile();
Change visibility of Adapter::prepareAuthParams() property from public to protected;
Change visibility of Adapter::readUserProfile() property from public to protected.