hdf5_ep

[svn-r8569] Purpose:
    Add/Correct documentation

Description:
    Added doxygen documentation to:
        Exception.cpp
        H5CompType.cpp
        H5FcreatProp.cpp

    and corrected some typos in comments for:
        H5AbstractDs.cpp
        H5EnumType.cpp
        H5File.cpp

Platforms:
    SunOS 5.7 (arabica)
    Linux 2.4 (eirene)