i18n basic configuration and trans Tera tag

Closes #210

* added remark concerning include-not-in-templates

Closes https://github.com/Keats/gutenberg/issues/208

* Trigger rebuild when `config.toml` is edited

Fix #204

And add Prolog (closes #170)

From #191

And fix bug with taxonomies urls

* Added inital trailing_slash impl

* Added simple test

* Updated docs website to use trailing_slash option

* Updated documentation to reflect new trailing_slash option

* Added combined cachebust and trailing_slash test

Add the detection of ChangeKind::Sass to tests

Added j1m.net as a site which uses Gutenberg

Typo fix

Close #167

Added installation method for Void Linux

Expose to templates whether or not a page is draft

Useful if you are, e.g., generating an index of blog posts.

Hack fix and new tests for body-shortcodes

Extract syntex highlighting module into a new component in workspace

This removes the dependency cycle between config and rendering that
causes 4 packages to be recompiled every time a change is made.

I just want to code fast!