add Part 13a Hindi (OpenMined#2958)

Co-authored-by: Andrew Trask <liamtrask@gmail.com>

Bump version to 0.2.2a1 (OpenMined#2943)

bumpversion 0.1.28a1 -> 0.1.29a1 (OpenMined#2655)

bumpversion 0.1.25a1 -> 0.1.26a1 (OpenMined#2583)

bumpversion 0.1.24a1 -> 0.1.25a1 (OpenMined#2564)

bumpversion 0.1.23a1 -> 0.1.24a1 (OpenMined#2536)

Fix MNIST parallel demo (OpenMined#2508)

* adapt code to new Message class and update tests

* Remove dataset loading for tracing purposes.

Merge pull request OpenMined#203 from swaroopch/docs/base-libraries

[docs] Install base libraries first