hdf5_chunking_query_bmr

[svn-r18] ./src/hdf5plat.h
	Added defn for int64 and uint64 on irix.  It seems to be
	wrong, but at least things compile and run.  This file will go
	away with autoconf anyway.

./test/testhdf5.c
./test/Makefile
	Added tstab.c

./test/testhdf5.h
	Added tstab.c

	Fixed bugs with CHECK_I() and CHECK_PTR().