hdf5_ep

[svn-r14703] 1. H5HFiblock.c: fixed problem for uninitialized "u" for bug #1072 in H5HF_man_iblock_size().
2. H5HFstat.c: Since H5HF_space_size() zeroed out fs_size, add "meta_size" to store
   free-space size before adding to "heap_size".
3. h5stat_gentest.c: increase # of groups to get "h5stat_newgrat.h5" that contains 
   indirect block entries in fractal heap.  
   This is for testing the recursive part of the code in H5HF_man_iblock_size().
4. h5stat_newgrat.h5: the new .h5 file generated by h5stat_gentest.c.
5. h5stat_newgrat.ddl: expected output from new "h5stat_newgrat.h5".

Tested on kagiso, smirom, linew.