Rename "PyBBM version updates" to "changelog".
English and editorial fixes for example.rst
English fixes for index.rst
Merge pull request #112 from marco-m/patch-3

English fixes for index.rst
Merge pull request #110 from marco-m/patch-2

English and editorial fixes for example.rst
Merge pull request #111 from marco-m/patch-1

Rename "PyBBM version updates" to "changelog".