This is because of the positioning of the elements which triggers
a clipboard.js bug: zenorocha/clipboard.js#382
Removing the whitespace around the HTML tags works around this issue.

closes: #1041

ClipboardJS is initialised once in the bundle for class="copy",
not initialised on each page that uses it.

This includes the generation of metadata for all hosted entities, even if there's more than one entity defined for a certain type (e.g. multiple SPs or multiple IdPs).

Still missing:

* Metadata converter moved to the admin module.
* Metadata lookup.
* Showing metadata for trusted entities.
* Downloading certificates.
* Move the "clear my discovery choices" link to the new user interface.

Start migrating to SAML2 getters/setters

It was broken in previous commits. It should always stick to the bottom of the page, unless the page is long enough to not fit in the screen, so then it should just be thrown after the end of the content.

This way the code is closer to the resulting HTML, and we don't need to pass it through the "raw" filter afterwards to keep rendering the HTML.

This introduces a "theme.header" configuration option in order to achieve that.

This builds and minifies CSS and a common JS bundle, as well as copy the relevant fonts. In order to build, we now need to run "npm run build" after installing the dependencies with "npm install".

This way we can forget about updating the copyright notice every year.

This allows more graceful fallback for untranslated languages.
Also, use `raw` filter to keep the embedded HTML working.

This uses the translations from the preprodwarning module,
and can be removed in 2.0 (together with legacy templates).

Twig will always use gettext, legacy will use legacy. Twig does not
work with legacy so new ui would break if you would not also set this
option. Instead, just switch the system in use based on the usenewui
config variable.

This is because some templates, e.g. errror, expect to be able to
include them. This fixes e.g. the No State error page.

There's some redundancy now since the code must support the old
and new template. The links variety is not very beautiful, but the
old one wasn't either..

When we remove old templates we can also remove silk.

This is likely way more informative for the average person
clicking the link - and linking directly to github only
stimulates people asking help questions in issue tracker.

Update config.php
Update header.php