Fixes #23044

Fix MKCOL for IE11 as well

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

Composers PSR-4 autoloader in core

docker containers should be stopped before being removed - refs https…

make sure links open in new tabs

Add base rewrite rule only when RewriteBase is defined

fix typo in comments app meta data

This introduces the defacto standard PSR-4 autoloader from composer into
core. This will allow proper PSR-4 naming of our classes.

Since our original autoloader is still available we can slowly switch
over classes to PSR-4.

Fix syncing of all birthday calendars in one go

Change rel="shortcut icon" to the standard rel="icon"

apps/files: Fix typos in comments (found and fixed by codespell)

Do not set response status in CLI in case of error

This contribution is AGPL and MIT licensed.

Signed-off-by: Stefan Weil <sw@weilnetz.de>

In case Apache is configured with an `Alias` such as with the ownCloud packages the rewrite rules will fail when no valid RewriteBase is configured.

Do not check all chunks of a chunked upload if we do not need to

Remove disabled autocorrect for new file names

Add XMLReader as requirement

[3rdparty] Bump symfony/polyfill-php* to 1.1.0

docker containers should be stopped before being removed - refs https://github.com/docker/docker/issues/18758

Select queries in the default share provider should query for file/folder

Public link share disabled if password length is equal to 0

Fix capabilities intergration tests

Fix compatibility with PHP 5.4

Use HTTPClient instead of file_get_contents

Use "hasKey" instead of checking the value

There can be leftover calendar and contacts shares in the oc_share
table. We need to filter those out properly.

The SabreDAV release in 9.0 requires XMLReader, while this is usually compiled in by default some distributions like Gentoo don't.

Without this ownCloud gives a fatal 500 error instead of telling people to enable XMLReader.

Fixes https://github.com/owncloud/core/issues/23003

* ref #22784

If the check is negative it would depending on the used cache store the value as an empty string. When reading the value this check would thus return "false" even if a value exists.

Allows us to catch exceptions like 404's and thus prevents stuff like:

```
{"reqId":"fnmS0hc+fL4+WXKAruo5","remoteAddr":"192.168.39.100","app":"PHP","message":"file_get_contents(http:\/\/ckamm.blaucloud.de\/\/status.php): failed to open stream: HTTP request failed! HTTP\/1.1 404 Not Found\r\n at \/var\/www\/owncloud\/apps\/files_sharing\/lib\/external\/storage.php#260","level":3,"time":"2016-03-08T21:00:33+00:00","method":"PROPFIND","url":"\/remote.php\/webdav\/"}
```

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