hdf5_ep

[svn-r10729] Purpose:
Cray X1 Port

Description:
Porting 1.7 branch to Cray X1.  With these changes, HDF5 builds, but
there are some errors in the tests.  Working on the errors.

Solution:
Added nv1-cray file to config directory.
Cleaned up some code in hl/c++ that was causing compiler to complain.

Platforms tested:
Cray X1, mir, sleipnir

Misc. update: