Clean up configuration before running tests using Travis CI
Tests: More time to stop client/server
Fix build and source path for Coveralls
Travis CI: Build with cmake for coverage
Compatibility with old cmake
Revert "invoke setFocus() and keyEvent()"

This reverts commit 4f9d14d36ae8cd2c8bf0826f19686d3811105161.

Conflicts:
	src/gui/mainwindow.cpp