Integrate user.getcurrentstatus into user.query

Summary: D2492#6

Test Plan:
user.query of user which is away.
user.query of user which is not away.
user.whoami - no information there.

Reviewers: epriestley

Reviewed By: epriestley

CC: btrahan, aran, Koolvin

Differential Revision: https://secure.phabricator.com/D2502