New upstream release for qtermwidget

Summary:
Packaged new upstream release 0.17.0 of qtermwidget
Updated changelog, control and copyright
Updated symbols

Test Plan: Built successfully on https://launchpad.net/~apt-ghetto/+archive/ubuntu/ludev

Reviewers: kc2bez

Reviewed By: kc2bez

Differential Revision: https://phab.lubuntu.me/D133