Add example of non-blocking communication with Python objects, info re reusing buffers for receiving messages, to tutorial.
Typos in mpi4py.rst edited online with Bitbucket
Merged in donkirkby/mpi4py/donkirkby/typos-in-mpi4pyrst-edited-online-with-bi-1406844548899 (pull request #2)

Typos in mpi4py.rst edited online with Bitbucket
Merged in lebedov/mpi4py (pull request #1)

Add example of non-blocking communication with Python objects,
info re reusing buffers for receiving messages, to tutorial.
docs: Change title in user manual section
docs: Rename file