* maybe_slugify() only does simple sanitation if config.slugify is false

* slugify is disabled by default, turn on for backwards-compatibility

* First docs changes for optional slugification

* Remove # from slugs but not &

* Add/fix tests for utf8 slugs

* Fix test sites for i18n slugs

* fix templates tests for i18n slugs

* Rename slugify setting to slugify_paths

* Default slugify_paths

* Update documentation for slugify_paths

* quasi_slugify removes ?, /, # and newlines

* Remove forbidden NTFS chars in quasi_slugify()

* Slugification forbidden chars can be configured

* Remove trailing dot/space in quasi_slugify

* Fix NTFS path sanitation

* Revert configurable slugification charset

* Remove \r for windows newlines and \t tabulations in quasi_slugify()

* Update docs for output paths

* Replace slugify with slugify_paths

* Fix test

* Default to not slugifying

* Move slugs utils to utils crate

* Use slugify_paths for anchors as well

* Update installation.md

* Update cli-usage.md

* Update installation.md

* Update directory-structure.md

* Update configuration.md

* Update overview.md

* Update section.md

* Update page.md

* Update section.md

* Update configuration.md

* Update page.md

* Update section.md

* Update page.md

* Update shortcodes.md

* Update linking.md

* Update table-of-contents.md

* Update syntax-highlighting.md

* Update taxonomies.md

* Update search.md

* Update sass.md

* Update index.md

* Update multilingual.md

* Update overview.md

* Update pages-sections.md

* Update pagination.md

* Update taxonomies.md

* Update rss.md

* Update sitemap.md

* Update robots.md

* Update 404.md

* Update archive.md

* Update overview.md

* Update installing-and-using-themes.md

* Update creating-a-theme.md

* Update netlify.md

* Update github-pages.md

* Update gitlab-pages.md

* Update index.md

* Update page.md

* Update section.md

* Updates.

Close #686