Split export test to test on each format and each input file One can still check all exports with one commend ctest -R "export.*"
Make the export test available to all, since it is independent of X11
1.) Filenames for export changed 2.) Usage of wmctrl 3.) More temporary file to remove
Many test are not running, but if changed the '-dbg xxx' to '-dbg any' then all of sudden they pass ... (The buffered output of lyx is often disrupted too early with 'kill -9', so the expected data are not available for the appropriate test)
