hdf5_ep

[svn-r4283] 
Purpose:
    Cleanup
Description:
    The SSL library was being tested for even if we didn't need it. This
    was causing some libraries to be included in our library which
    weren't needed (i.e., libcrypto).
Solution:
    Only check for the SSL library if either GASS or Grid Storage is
    specified.
Platforms tested:
    Linux