Update to OpenMPI 1.4.1:

- Update to PLPA v1.3.2, addressing a licensing issue identified by
  the Fedora project.  See
  https://svn.open-mpi.org/trac/plpa/changeset/262 for details.
- Add check for malformed checkpoint metadata files (Ticket #2141).
- Fix error path in ompi-checkpoint when not able to checkpoint
  (Ticket #2138).
- Cleanup component release logic when selecting checkpoint/restart
  enabled components (Ticket #2135).
- Fixed VT node name detection for Cray XT platforms, and fixed some
  broken VT documentation files.
- Fix a possible race condition in tearing down RDMA CM-based
  connections.
- Relax error checking on MPI_GRAPH_CREATE.  Thanks to David Singleton
  for pointing out the issue.
- Fix a shared memory "hang" problem that occurred on x86/x86_64
  platforms when used with the GNU >=4.4.x compiler series.
- Add fix for Libtool 2.2.6b's problems with the PGI 10.x compiler
  suite.  Inspired directly from the upstream Libtool patches that fix
  the issue (but we need something working before the next Libtool
  release).

(asau)