* add matomo function in all default templates

Before this pull request, the 404 and 404-search templates where handled
as full HTML pages without the page context (layout).

With this pull request both pages are rendered inside the selected
themes layout. Additionally the 404 template now contains the "search
form" and the homepage link.

All Themes are already updated with the above changes.

This reverts commit 9fa8fab864.

Before this pull request, the 404 and 404-search templates where handled
as full HTML pages without the page context (layout).

With this pull request both pages are rendered inside the selected
themes layout. Additionally the 404 template now contains the "search
form" and the homepage link.

All Themes are already updated with the above changes.

Make HTMLy more flexibel.

Move the title, description, and canonical from the head_contents for
better templating. Eg. for Twitter Card or OG.

Styling, performance tweak, and bugs fixes.

HTMLy fully supports the HTTPS protocol.

Prepare for releasing v1.6

Dynamic heading for themer, there is is_index function.

Add Facebook comments as comment system options.

Improve theme

Clean up the codes.

User role support

Various improvements

Improve the style

Change admin panel.

Realease Candidate Version.

Improve RSS feed, adding sitemap and markup.

Add tagline and change some of the style.

Improve search form + perfomance.

Fix default theme style

Change the default theme style.

Various minor changes for better code readability.

Add author info on post.

Add tag cloud widget and various style changes for better look.

Yay! HTMLy was born today.