8179327: gtestLauncher should run tests on a separate thread (optionally)
Reviewed-by: rehn, mgerdin

8166129: hitting vmassert during gtest execution doesn't generate core and hs_err files
Reviewed-by: kzhaldyb, kbarrett

8148244: Finalize and integrate GTest implementation
Reviewed-by: jwilhelm, erikj
Contributed-by: stefan.karlsson@oracle.com, stefan.sarne@oracle.com, jesper.wilhelmsson@oracle.com, erik.helin@oracle.com, alexandre.iline@oracle.com, igor.ignatyev@oracle.com, erik.joelsson@oracle.com