hdf5_ep

[svn-r1619] ./src/H5O.c				[1.2, 1.3]
	Fixed a read-uninitialized-memory error that resulted in the
	file containing small amounts (<8 bytes each) of uninitialized
	data. These padding areas (which are never read by hdf5) are
	initialized to zero now.

./MANIFEST
./src/H5Z.c
./src/H5Zdeflate.c			[NEW]
./src/H5Zprivate.h
./src/H5Zpublic.h
./src/Makefile.in
	The zlib filter was moved to a separate file but is still
	automatically defined.