[OPT] (GroupingOper) Improving performance of the Grouping operation and of Data creation.
[OPT] (GroupingOper) Flattened grouping code already working again.
[OPT] (CCC) A few more speed optimizations.
[FIX] (protovis) Now the properties may call other properties and this will always return an up to date value, on any instance.
[Merge] (ccc-perf-opt-1) Conflicts: src/pvc/data/GroupingOper.js