hdf5_ep

[svn-r14211] Description:
	Remove --enable-hdfv1_6 configure flag, now that all dependencies on it
have been removed and new --with-default-api-version=[v16|v18] and
--disable-deprecated-symbols flags have taken its place.

	Update types in bin/trace so that bin/reconfigure runs cleanly.

	Run bin/reconfigure to regenerate configure script, along with
other associated files, etc.

Tested on:
        FreeBSD/32 6.2 (duty) in debug mode
        FreeBSD/64 6.2 (liberty) w/C++ & FORTRAN, in debug mode
        Linux/32 2.6 (kagiso) w/PGI compilers, w/C++ & FORTRAN, w/threadsafe,
                                in debug mode
        Linux/64-amd64 2.6 (smirom) w/default API=1.6.x, w/C++ & FORTRAN,
                                in production mode
        Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN,
                                in production mode
        Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN,
                                w/szip filter, in production mode
        Mac OS X/32 10.4.10 (amazon) in debug mode