hdf5doc

Debugging.html
	Fixed errors

H5.c
	Fixed core dump with setvbuf() for debugging.

H5Fistore.c
	Fixed bug with sparse datasets.

H5Omtime.c
	Found a typo in "Posix Programmer's Guide".  The `%z' in the
	strftime() should be `%Z' instead.

H5T.c
H5Tpublic.h
	Improved api tracing for H5Tinsert_array().

h5tools.c
	Doesn't dump core for empty datasets.