fixed test after refactoring
TestHandler: fixed test name suffix showing

E.g. if @multiple test 0 (zero) fails.
Runner: invoke output handlers after received SIGINT (CTRL+C)
Runner: better SIGINT catching readability
Runner: property 'jobCount' renamed to 'threadCount'
Output handlers: show job count that haven't been runned

It may happend when prinintg results after catching SIGINT (Ctrl+C).