David Edmundson authored Nov 16, 2018 and Kurt Hindenburg committed Nov 16, 2018

Summary:
Ported from KProcess::startDetached to a QProcess we can kill should the
window not exit when closed.

On the KDE CI where the window isn't quitting on close the test might
fail, but it will give us output where we can investigate.

Test Plan: Passes locally

Reviewers: #konsole, #frameworks, hindenburg

Reviewed By: #konsole, hindenburg

Subscribers: hindenburg, konsole-devel

Tags: #konsole

Differential Revision: https://phabricator.kde.org/D16919