new PETSc release

[Barry Smith]

----------------------------------------------------------------------------
Portable, Extensible Toolkit for Scientific Computation (PETSc)
----------------------------------------------------------------------------
              http://www.mcs.anl.gov/petsc

We are pleased to announce the release of the PETSc 2.2.1 parallel
software libraries for the implicit solution of PDEs and related
problems.

The change are listed at
http://www-unix.mcs.anl.gov/petsc/petsc-2/documentation/changes/221.html
download at
http://www-unix.mcs.anl.gov/petsc/petsc-2/download/index.html and
installataion instructions at
http://www-unix.mcs.anl.gov/petsc/petsc-2/documentation/installation.html

We now STRONGLY urge you to use config/configure.py to configure PETSc
rather than manually editing the bmake/$PETSC_ARCH files.

As always, please send bug reports, questions, and requests for new
features to petsc-maint at mcs.anl.gov.

Thanks for your continued support.

The PETSc developers,
Satish, Kris, Bill, Dinesh, Matt, Lois, Victor, Barry and Hong