Code review comment for lp:~andreas-pokorny/powerd/blank-on-proximity-powerstate

The change looks fine, still need to test it though (together with https://code.launchpad.net/~andreas-pokorny/telepathy-ofono/control-proximity-handling-in-powerd/+merge/235358).

Created silo 10 so we can have the packages available in the same PPA.

We just need to make sure telepathy-ofono is handling the same use cases as previously done by powerd.