Force kill window manager if it hangs

Sometimes the window manager hangs and blocks the UI automation. Now the
window manager process will be force killed if it does not terminates in
30 seconds.

Also improve logging to show the window manager command as a string.
Merge pull request #1426 from elyezer/force-wm-kill

Force kill window manager if it hangs
Added test for lifecycle-environment paths

"Added test for lifecycle-environment paths"
Merge pull request #1420 from tkolhar/test_cli

Added test for lifecycle-environment paths
Removed references to `omaciel`.

Since we've moved the project to the `SatelliteQE` organization, I have
updated references to `omaciel/robottelo`.
Merge pull request #1434 from omaciel/update-index

Removed references to `omaciel`.