wxWidgets 2.9.2 compatibility

So here's the patch I needed to get pgAdmin to build against wxWidgets
2.9.2 on Mac. The only obvious problem I see with it when running is
that the toolbars are displaying text over the graphical buttons which
needs further investigation.

I'm not really sure why the compiler is unable to resolve this:

./slony/dlgRepCluster.cpp:815: error: request for member
‘GetClientData’ is ambiguous
/usr/local/include/wx-2.9/wx/ctrlsub.h:297: error: candidates are:
void* wxItemContainer::GetClientData(unsigned int) const
/usr/local/include/wx-2.9/wx/event.h:3234: error:
void* wxEvtHandler::GetClientData() const

Any ideas Peter? It's easy to give it a hint of course, but quite ugly.

--
Dave Page
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