libdeng2|Refactor: Rules are reference-counted
Simplified the lifetime and ownership management of rules by applyingreference counting.
Also added functions de::holdRef() and de::releaseRef() for moreconvenient/safer reference holding and releasing.
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Added by skyjake almost 12 years ago
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libdeng2|Refactor: Rules are reference-counted
Simplified the lifetime and ownership management of rules by applying
reference counting.
Also added functions de::holdRef() and de::releaseRef() for more
convenient/safer reference holding and releasing.