Recognize more Markdown file extensions for READMEs.

Ship klaus.1 manpage.

Put files in a tarball in a subdirectory.

Fixes #204

Set report_level to an integer.

See http://docutils.sourceforge.net/docs/user/config.html#report-level

the low lovel stuff is now in wsgi_autoreloading so it can easily
imported into a mod_wsgi loader script without invoking the
wsgi_autoreload top level code

Fixes #144 - Blank Git user config for tests

removed the '--no-gpg-sign' from PR #141 and overrites the HOME variable to
force git using an empty config.

see changes in:
 * tests/repos/scripts/dont-render
 * tests/repos/scripts/no-newline-at-end-of-file
 * tests/repos/scripts/test_repo

Fix Python3 compatibility of submodule view.

Drop argparse requirement (included in Python 2.7+)

Fix an issue which led to broken link to repo root.

Fixes #190. If an URL rule in flask does not end with a part with a path
converter it is better to end such rule with a slash, because
documentation at
http://flask.pocoo.org/docs/0.12/api/#url-route-registrations says:

"1. If a rule ends with a slash and is requested without a slash by the
user, the user is automatically redirected to the same page with a
trailing slash attached.
2. And if a rule does not end with a trailing slash and the user
requests the page with a trailing slash, a 404 not found is raised."

Link submodules to an info page, rather than showing a 404.

Currently, this just shows some basic information about the submodule -
i.e. where the repository can be cloned from, and the revision that is
referenced.

Partially addresses #1. In the future, this page could redirect to the
actual submodule repository history page.

Fix bug when the latest ref on a repo is a tag

Tags do not have commit times, but they do appear in the list of
refs. This makes klaus use the latest ref that has a commit_time when
finding the last updated time for a repo.

Avoid rendering, then parsing diff.