README: Remove footnote that should be obsolete by now.
README: Wrap long lines.
README: Note that the script is Python 2-specific.

Even though I am interested in getting it to work with Python 2 or Python 3,
at the option of the user, we only make guarantees about Python 2 at this
moment.
README: Add note about the Honor of Code.

It should be manually accepted and we won't change it in the foreseeable
future.
README: Add information about the `requests` library.
README: Change the position of `easy_install`.