We showed an outdated list of available wordlists before.

Apparently `pypip.io` is not longer active. It looks like `shields.io`
offers even much more badges.

`sphinx` can generate not only HTML docs but also man pages. Let's see
how far we can go to replace the more or less manually crafted man page
we provide currently.

In fact Arnold G. Reinhold copyrighted each of the pages of the
`diceware.com` website. The idea as such was not copyrighted (and might
be uncopyrightable).

Mr. Reinhold, however, still owns a "diceware" trademark.

And remove unneccessary whitespace.

We should be able to generate a more accurate man page for `diceware`.
with `docutils` and `rst2man` we can create a nice looking man page with
proper styles set.

Yet, we onlyy provide first parts of the man page template.

Make Sphinx stop complaining and fix indents.

We do not accept open filedescriptors as argument for `WordList`
anymore. This seems to be the only way to make sure we can open/close
wordlist files whenever we want.

Use path instead of filedescriptor with `WordList`.

We will not accept filedescriptors as `WordList` arguments anymore.

We will not accept filedescriptors as `WordList` arguments anymore.

We do not need to test `infile` as file descrtiptor, as we expect paths
(strings) from now on.

Do expect file paths instead of already opened filedescriptors.

The `argparse.FileType` type is considered bad style. Cf.
http://bugs.python.org/issue13824. With this FileType we cannot tell
when to close a file after reading (which should be done for most
regular wordlists) or not (in case of input from stdin).

Stop py.test complaining.

`WordList` accepts both, already opened files and also file paths. As
this class can better care for closing open files after use, we should
not open files if not neccessary.

Files already opened by third-parties should be closed by them.