Closes #14, #43

Fix #51

Index page

Avoid issues with temp files from some editors

Add more sublime syntaxes

The packdumps contains the fixed Linker syntax too so it can be
used

Also fix gutenberg serve that has been broken (not
re-rendering content) for quite some time now.

Add missing fields to serialization

Also use Option for Page::summary

Close #38

Copy only static files that triggered the change notification

fix link to "releases"

Anchors

Add current_url and current_path

To every templates, useful when doing
navigation to know which link is currently
active

Try to make windows work + remove musl

Add markdown and base64 filters

Allow links to .md pages in pages contents

WIP shortcode

Use lazy front-matter regex

Using a greedy regex could lead to unintended consequences, like the
inability to syntax highlight a unified diff. This resolves issues like
that by using .*? instead of .* so that the closing +++ is matched as
soon as possible.