Fix udisks-lvm.service.
Manager: Call lvm_update during initialization.

Instead of do_delayed_lvm_update_now.  There isn't any delayed update
since we don't do udev coldplug.
Daemon: More verbose debugging of D-Bus publishing.
Daemon: Use ${prefix}/lib/ for resources.

Since that is where udisks-lvm-helper is installed.
Fix udisks-lvm.service some more.
Add "--persist" option.
Tests: Also start daemon when running locally.