hdf5_ep

[svn-r5525] 
Purpose:
    Bug fix (#699), fix provided by a user, approved by Quincey
Description:
    When a scalar dataspace was written to the file and then
    subsequently queried with the H5Sget_simple_extent_type function,
    type was reported H5S_SIMPLE instead of H5S_SCALAR.
Solution:
    Applied a fix (see bug report 699) and modified out test program
    to exercise the case.
Platforms tested:
    Solaris 2.7 and Linux 2.2.18