Fixed chunkinfo and RAllocatorHelper crashes. Details: * Tidied leak docs * Updated dialog command to workaround text windowserver bug and implement DIALOG_IMPL as an enum option. Also tried to support dismissing the dialog with CTRL-C but ended up just printing a warning as the notifier API is broken * Fixed RAllocatorHelper::OpenChunkHeap() (and thus chunkinfo <address>) and took Adrian's latest changes. * Fixed chunkinfo OOM problem

EXPORTS
	Close__12RExtraBtrace @ 1 NONAME R3UNUSED ; RExtraBtrace::Close(void)
	Connect__12RExtraBtrace @ 2 NONAME R3UNUSED ; RExtraBtrace::Connect(void)
	EnableProfiling__12RExtraBtracei @ 3 NONAME R3UNUSED ; RExtraBtrace::EnableProfiling(int)
	Handle__C12RExtraBtrace @ 4 NONAME R3UNUSED ; RExtraBtrace::Handle(void) const
	__12RExtraBtrace @ 5 NONAME R3UNUSED ; RExtraBtrace::RExtraBtrace(void)