replacing strict ISO 8601 timestamp with space instead of T

more user friendly, more easy to display in narrow tables
ParamSet now provides parameters as long and double
TimerWithArguments more failsafe being more close to QTimer behaviour

* QTimer does not provide other connection types than
  Qt::QueuedConnection, we must do the same thing because (i) there
  may be a good reason if Qt creators, in their wisdow, did that; and
  (ii) it obviously more failsafe (although potentialy less efficient)
  in case of multithreaded or mutex programming
* single shot timers are now children of the current event dispatcher
  rather than orphans, which ensure they lie in calling thread, and
  which is what QTimer::singleShot() does, and is required to start a
  timer (one cannot start a timer on an object belonging to a non-current
  thread)
log: console logger can now be filtered in severity and made removable