Allow ocs/v2.php/cloud/... routes

Remove AGPL title

Add clipboard action to Personal Settings Fed Cloud Id

Padding of federated servers

log class name, ID only is hard to debug

improve federation error messages

Make 'Add to your website' toggleable

Workflow cleanup

getJailedPath expects $path to have a trailing /

introduce NEXTCLOUD_CONFIG_DIR env variable (see #300)

Hanlde Core and Settings app in AppFramework

'core' and 'settings' are just apps but we treat them slightly
different. Make sure that we construct the correct namespace so we can
actually do automatic AppFramework stuff.

Add black version of system tags icon

Also cache WOFF, SVG and GIF

Increment the versions and adjust the capitilization

One of the possibilities of the old OCS API is that you can define the
url yourself.

This PR makes this possible again by adding an optional root elemenet to
the route. Routes are thus:

.../ocs/v2.php/<root>/<url>

By default <root> = apps/<app>

This will allow for example the provisioning API etc to be in
../ovs/v2/php/cloud/users

OCS Share API to appframework

Disbale failing intergration test for now

Design fixes for updates

Apply password policy on user creation

Includes PNG (16x16px) and SVG (scoured) versions in black, to be uniform with the other icon files.

Move Share backends to PSR-4 instead of using class path (#24941)

I have not been able to reproduce this failure locally yet.
But it seems to happen often on CI.
So disable for now.