vchoi_fork

[svn-r52] ./src/H5O.c
        If the symbol table entry doesn't change then the ent_modified
        argument to H5O_modify() doesn't change.  This allows us to
        set ent_modified to false and then call H5O_modify() a whole
        bunch of times and easily determine if any of the calls
        modified the symbol table entry.

./src/H5D.c
        Fixed caching of things in the symbol table entry using the
        scheme we came up with a couple months ago.