Currently it's too laborious to use duration suffixes when saving
generated configs and also to handle suffixes when changes are made
dynamically using maxctrl.
It will be trivial to do that when the new configuration mechanism
has been taken into use everywhere. That will not happen before
MaxScale 2.5.
So, in MaxScale 2.4 duration suffixes will be accepted in manually
created configuration files, but no warning will be logged if a
suffix is not used.
TODO: This much explanation in the release notes is a bit too
much, the beef should be moved somewhere else and the release
notes simply refer to that.
Names starting with '@@' can now longer be used in configuration files.
Subsequent commits will prevent such names from being used when objects
are created dynamically.
