remove clique... finally!
introduce a new systemd libdbus1 interface
porting over to new code
drop scopes outright
lots of fixups
more fixups, should be workable

Just need to figure out the dbus error on the session bus

Closes #23
Addresses #24
actually should always be session bus
turns out the multiuser_mode check was broken
Merge branch 'dbus-rewrite'

* dbus-rewrite:
  turns out the multiuser_mode check was broken
  actually should always be session bus
  more fixups, should be workable
  lots of fixups
  drop scopes outright
  porting over to new code
  introduce a new systemd libdbus1 interface