Add option to locally overrule global lazyload config setting.

E.g. `echo snippet('figure', array('image' => $image, 'lazyload'   => false));`
Fix multiple language check in sitemap and language toggle.
Delete non working search controller.
Keep empty controllers directory.

Add empty .gitkeep file.
Update feed plugin template.
Delete obsolete feed snippet.
Simplify page lookup.

Use `page('name-ofcontent-folder')->…` instead of $site-find('name-ofcontent-folder')->…`.
More simplifying of page lookup.

Use `page('name-ofcontent-folder')->…` instead of $pages-find('name-ofcontent-folder')->…`.
Add new feed templates.

A default one and a blog feed template.
Update feed plugin.

To automatically grab title and description of feed when present.
Add link variable to feed template.