[QtComp] Launching apps from lockscreen does not auto-hide greeter

[Omer Akram]

1: Lock device screen
2. pull out the launcher and start any app

What happens:
The greeter keeps showing and does not go away, while the app opens behind it.

unity8:
  Installed: 7.90+14.10.20140703.2-0ubuntu1
  Candidate: 7.90+14.10.20140703.2-0ubuntu1
  Version table:
 *** 7.90+14.10.20140703.2-0ubuntu1 0
        500 http://ppa.launchpad.net/ci-train-ppa-service/landing-006/ubuntu/ utopic/main armhf Packages
        100 /var/lib/dpkg/status
     7.90+14.10.20140703.1-0ubuntu1 0
        500 http://ports.ubuntu.com/ubuntu-ports/ utopic/universe armhf Packages

libqtmir:
  Installed: 0.4.0+14.10.20140703-0ubuntu1
  Candidate: 0.4.0+14.10.20140703-0ubuntu1
  Version table:
 *** 0.4.0+14.10.20140703-0ubuntu1 0
        500 http://ppa.launchpad.net/ci-train-ppa-service/landing-006/ubuntu/ utopic/main armhf Packages
        100 /var/lib/dpkg/status

qtubuntu-android:
  Installed: 0.60+14.10.20140703-0ubuntu1
  Candidate: 0.60+14.10.20140703-0ubuntu1
  Version table:
 *** 0.60+14.10.20140703-0ubuntu1 0
        500 http://ppa.launchpad.net/ci-train-ppa-service/landing-006/ubuntu/ utopic/main armhf Packages
        100 /var/lib/dpkg/status
     0.54+14.10.20140613-0ubuntu1 0
        500 http://ports.ubuntu.com/ubuntu-ports/ utopic/universe armhf Packages