upstart 1.7 released

Written for upstart by James Hunt on 2013-03-04

* New initctl commands: set-env, unset-env, get-env, list-env,
  reset-env, list-sessions (all except last with corresponding
  D-Bus methods).
* New D-Bus-only signals EventEmitted, Restarted, and EndSession method.
* Ability to run with PID >1 to allow Upstart to manage a user session.
  Running Upstart as a 'Session Init' in this way provides features
  above and beyond those provided by the original User Jobs such that
  the User Job facility has been removed entirely: to migrate from
  a system using User Jobs, simply ensure the user session is started with
  'init --user'.
* New upstart-event-bridge bridge which proxies system-level events down
  to Session Inits, allowing users jobs to react to udev events.
* Ability to read job configuration and override files from multiple
  freedesktop-compliant locations (Session Init only).
* Ability to shutdown both via a system shutdown request and via a user
  logout request (Session Init only).