Fix some typos, add some notes on python bindings, "improve" the folder searching
description, expand the discussion of crypto changes.
This includes the changes from
id:"
1309541202-4938-1-git-send-email-dmitry.kurochkin@gmail.com"
Thanks to Sebastian, Austin, and Uwe, Dmitry for the editing help.
(cherry picked from commit
74d00bb0e847a1aa785b9cae2e8242a7789bf8b3)