This solves the following issues:
1) Outrageous memory consumption when blobs are converted from strings during request processing
2) Materialization doesn't cause invalidation of BLOB IDs too early.
Original behaviour caused errors with updatable views or procedures receiving BLOB arguments.
PandoraBox* pbox = reinterpret_cast<PandoraBox*>(&can_of_worms);
pbox->open();
pbox->flush();
Nickolay may want to undo my ods.h changes if gcc insists
in its crusade against non-PODs and poodles.
placed some variables in context
fixed some function signatures
closed a few possible buffer overruns
sorry to the platform maintainers, I can't verify what I did for non-Win32 builds
