vchoi_fork

[svn-r6851] Purpose:
To add macro HDF5TESTDLL for windows libtest library.

Description:
Many HDF5 tests will use h5test.c.
So we create a libtest library to
1) make tests more organized and
2) make tests more consistent with other platforms
3) reduce compiling times
4) reduce dumplicated warnings possibily generated by h5test.c
However, we didn't create the corresponding libtest DLL correctly,
now, some warnings are generated because of this; so for this release,
we follow exactly DLL-DLL rules, to create an internal libtest DLL for
our test suites.
The application who used HDF5DLL will not have extra burdens to add
HDF5TESTDLL and this will reflect in the release.txt


Solution:
USE DLL import and export library by defining macro HDF5TESTDLL and HDF5TESTUSEDLL

Platforms tested:
Windows 2000(the macro will not affect on non-WIN32 platforms).

Misc. update: