hdf5doc

Purpose:
    1 new function; 3 revised functions; 2 bugfixes; copy edits
Solution:
    H5Tget_member_index: Added this new function.
    H5Tget_member_name: Revised, based on lessons learned with
        H5Tget_member_index.
    H5Tget_nmembers: Revised to indicate that function works for both
        compound and enumeration datatypes.
        --> Fixes Bug# 747.
    Cross-listed H5Tget_nmembers, H5Tget_member_index, and
        H5Tget_member_name under both compound and enum datatypes,
        as they work for both.
    H5Tset_tag: Corrected tag description (it is descriptive, uniqueness
        is not required).
    Corrected several spelling errors.
        --> Partially fixes Bug# 760 (though just for this file *sigh*).
Platforms tested:
    IE 5