merged Seaside-Core-pmm.806 to pick up Philippe's latest ...

created Seaside-GemStone-JSON-Core

moved JSON methods from Javascript-GemStone-Core to Seaside-GemStone-JSON-Core

1199 run, 1195 passes, 0 expected defects, 1 failures, 3 errors, 0 unexpected passes
copied Seaside-Core-pmm.806 into repo
add Seaside-GemStone-JSON-Core to baseline