Run GUI tests on Travis
Run GUI tests on Travis

Travis allows to run GUI tests, and it would increase code coverage
https://docs.travis-ci.com/user/gui-and-headless-browsers/#using-xvfb-to-run-tests-that-require-a-gui

benbenw/jmeter,etnetera/jmeter,etnetera/jmeter,ham1/jmeter,benbenw/jmeter,benbenw/jmeter,etnetera/jmeter,ham1/jmeter,apache/jmeter,apache/jmeter,ham1/jmeter,apache/jmeter,apache/jmeter,etnetera/jmeter,ham1/jmeter,etnetera/jmeter,apache/jmeter,benbenw/jmeter,ham1/jmeter