This will allow DE environments to decide whether they want to allow
actions and profiles to dynamically change from the battery level or
AC adapter presence.
It's not critical for the boot process in any way, and this should
help with any race conditions form kernel modules still setting
up anything related devices after the initial device uevent.
Expose the daemon as 'org.freedesktop.UPower.PowerProfiles' by default
but we also own the old 'net.hadess.PowerProfiles' name for
compatibility resons.
Also dbus objects are now registered also in the path
/org/freedesktop/UPower/PowerProfiles and they implement the
org.freedesktop.UPower.PowerProfiles interface.
Even in this case we preserve the compatibility with the old ones.
To make this switch as most reliable as possible, the code is now
generated for dbus configuration files preserving the previous ones as
base.
Tests are now performed checking both names, to ensure again that we're
not breaking the expectations for the old APIs consumers.
It's still quite old, but provides some features we may want to use in
future, so let's use a newer version since we're about to release a new
major version of p-p-d too.
