hdf5doc

Descripition:
    Added approximately 80 functions to the "New Functions" list.
        Structured by use, purpose, and/or API.  
        Some duplicate listings when a function fits multiple categories.
    Added note regarding change of error codes from ENUM to identifier.
    Updated "Library Configuration" section.
    Edited introductory paragraphs.
    Formatting and minor editing throughout.
Tested: 
    Firefox