hdf5_ep

[svn-r6790] 
Purpose: Maintenance/code cleanup/fight with Windows Fortran DLLs

Description: While strugling with Fortran DLLs on Windows I noticed
             some missing export definitions that are necessary
             for exporting correctly data and functions.

Solution: Added missing definitions

Platforms tested: h5committested; Windows with MSVC++ and Visual Fortran
                  on Windows. Fortran DLLs partially work, only 2 tests
                  fail, but failure doesn't make any sense. To make
                  things worse, most of the C DLL tests start to fail when
                  Fortran is built. I am still investigating...


Misc. update: