The crowd goes wild with ChangeLog entry #1000!

This test now also checks that it is possible to skip running
ready handlers.

Implemented new test for the TimerMgr::stopThread().
Removed redundant clear of the error string.
Added comment to the TimerMgr about the thread safety.

Minor changes to commentary, etc.

 - commitGlobalParameters renamed to setGlobalParameters
 - const added
 - Comments updated