Fix example time period.
Python: Fix a compiler warning.
Implement += operator for arrays.
Implement downtime notifications.
Refactor #includes (Part 5).
Refactored #includes (Part 6).
Windows build fix.
Fix: The order in which config items are defined should not matter

Fixes #3733
*NIX build fix.
Implement the CompatLog type.
Build dependant services using extracted expression lists.
Fix Expression::Extract.
Use Expression::Extract* for notifications.
Fix cloning attributes for service notifications.
Reschedule timers even if the OnTimerExpired handler threw an exception.
Implement the CheckResultReader type.