Refactor|Record|libdeng2: Setting values without recreating variables
For convenience, Record now provides methods for setting member variable values in such as a way that the variable is only created if it doesn’t already exist.
Cleaned up Config to use these new methods instead of implementing its own.
LogFilter also now uses these so that the Variable instances can be more conveniently observed (Variables not deleted suddenly).
Refactor|Record|libdeng2: Setting values without recreating variables
For convenience, Record now provides methods for setting member
variable values in such as a way that the variable is only created
if it doesn’t already exist.
Cleaned up Config to use these new methods instead of implementing
its own.
LogFilter also now uses these so that the Variable instances can
be more conveniently observed (Variables not deleted suddenly).