fixes #23197

* Updated unit test

**Before:**
> Your PHP version (5.4.16) is no longer supported by PHP. We encourage you to upgrade your PHP version to take advantage of performance and security updates provided by PHP.

**After:**
> You are currently running PHP 5.4.0. We encourage you to upgrade your PHP version to take advantage of performance and security updates provided by the PHP Group as soon as your distribution supports it.

Fixes https://github.com/owncloud/enterprise/issues/1170

Using https://github.com/owncloud/core/pull/22274 we have to patch the
iedavclient.js as well.

rel="shortcut icon" hasn’t been relevant in years, isn’t in any
standards, and causes problems for simple pattern matching clients.
https://www.w3.org/TR/html/links.html#linkTypes

* this removes the old tooltip first before showing
  the new one to update the text - otherwise the old
  text will be shown

Probably nice for the people that contributed to 9.0 to see themselves in the AUTHORS file :)

Action icons now appear properly in public link page.
More actions are now CSS icons.

This makes theming of file actions possible