Freezeyt

Python version support

* `freezeyt` is now tested on Python 3.13.
* `freezeyt` is no longer tested on Python 3.7.
(https://github.com/encukou/freezeyt/pull/405)

Deprecations

* Deprecate extra pages starting with a slash. Extra page URLs should be
relative to the prefix.
(https://github.com/encukou/freezeyt/pull/406)

Features

* When a page redirects to a page that would be saved to the same file
(for example `/` to `/index.html`), save the target page regardless
of general redirection settings.
(https://github.com/encukou/freezeyt/issues/374)
* CLI options `app` and `output` now override configuration settings.
(https://github.com/encukou/freezeyt/pull/407)
* Add `-h` CLI option, as an alias to `--help`
(https://github.com/encukou/freezeyt/issues/394)
* Errors from infinite redirection loops are reported along with other
page-specific errors. (https://github.com/encukou/freezeyt/pull/402)

Fixes

* The application supplied by the user is now passed to `extra_pages`
generators. (https://github.com/encukou/freezeyt/issues/392)

Compatibility

* `freezeyt` is now tested on Python 3.11 and 3.12.
* `freezeyt` is now compatible with Werkzeug 3.0.

Added

* The `Freezeyt-Action` HTTP header can now specify whether (and how) to freeze
a page.
* The `Freezeyt-URL-Finder` HTTP header can now specify whether (and how)
URLs to follow are found on a page.
* `Link` HTTP headers are now followed.
* `--fail-fast` option (`-x`, or `fail_fast` in config): stop freezing after
the first error
* `gh_pages` plugin to simplify publishing to GitHub Pages
* `freezeyt.Middleware`: WSGI middleware that allows using some `freezeyt`
features in dynamic web apps (even when not freezing)
* The application can be specified in configuration, not only as a CLI
argument.
* `freezeyt.VersionMismatch`, the exception raised when the config format
doesn't match the current `freezeyt` version

Changed

* "Status_handlers" were renamed to "actions".
The old name is still available and there are no plans to remove it.
* Backslashes in URL paths of extra files are now converted to forward slashes.
A backslash can be inserted using the `%5c` escape sequence.

Fixed

* The status handler configured for `2xx` now applies to `200 OK` statuses.
* Fixed handling edge cases in paths for extra files.

Deprecated

* Multiple consecutive slashed in `prefix` are merged. `freezeyt` prints a
warning when this happens.
* `freezeyt` now warns when multiple different URLs would be saved to a single
file. There are no guarantees about which of the URLs is saved.

Initial release.