* DBus interface was reviewed and there were several things added
to make it more generic and useful for other realm types.
* Use ObjectManager to track objects in realmd. This facilitates
using realmd with the way it now uses multiple interfaces
on objects.
https://bugzilla.gnome.org/show_bug.cgi?id=682185
* In particular support of different credential methods and better
hints for different owners of those credentials, so we can prompt
more cleanly.
* Less abstraction in the realmd interfaces
https://bugzilla.gnome.org/show_bug.cgi?id=680892
* Use realmd for domain joining and lookup, runtime dependency
* Validate join domain correctly
* Add UmRealmManager for handling some stuff above the autogenerated
realmd dbus code
* Show a dialog if the user's credentials cannot be used to join
the domain. Prompt for admin creds.
* Register the user's login with the AccountsService
* This depends on the CacheUser() method of AccountsService
https://bugzilla.gnome.org/show_bug.cgi?id=677548
