tree a56500f88c69a9448481b0cbf8ae3fa112eebeec
parent e81b323af1cea0cbba80171968c27f6023ffc7e0
author Fyodor Kupolov <fkupolov@google.com> 1443732862 -0700
committer Fyodor Kupolov <fkupolov@google.com> 1443813579 -0700

Do now allow current user to be removed

It was possible to remove a foreground user using pm remove-user command.
The system ends up in the inconsistent state, because switch does not happen
and the removed user stays in the foreground, but its state is removed.

Also added am get-current-user command.

Change-Id: Ida2dce8f99bac55e106cdd44c93e96cc9142d7fb