Check if the offset exists before accessing

Add `Satisfy All`

Parse backslash as directory separator in breadcrumb

Remove some old l10n files they arent loaded anymore

Manually type-cast all AJAX files

Streamline auth and CSRF check in scan.php

Encode requesttoken

Encode Requesttoken for avatars

Fix #14310

Port of #14041 to master

on ownCloud upgrade: upgrade all apps in order, load important ones

Fix "other" app update stack

If no link text has been set for the navigation show the link nonetheless

Disallow path traversals in file view

Fixes https://github.com/owncloud/core/issues/14356

Dont update the cache when working with part files

add documentation issue trackers and use https everywhere

Add loadfeedback

This prevents a misusage of \OC\Files\View by calling it with user-supplied input. In such cases an exception is now thrown.

Allow AppFramework applications to specify a custom CSP header

Fix invalid `ini_set` directives

Revert "add debug log for memcache instantiation"

Check if instance is not yet installed

Somehow they got messed up. Because PHP does automatic type juggling this has worked before as well however it's not guaranteed that this might work in the future as well.

Activity/225 Move displaying of files related activities to files app

Activity/225 sharing extension

Due to a security hardening in 8.1 a missing value of empty trusted domains in the config would provoke an error as this was misused by a lot of users.

This caused a problem where the initial installation happened from another domain than 127.0.0.1 as in this case the domain was considered untrusted as no value was defined. However, this special case should not get intercepted.

To test:
- [ ] Installing ownCloud on 127.0.0.1 works
- [ ] Installing ownCloud on another domain / IP works
- [ ] When setting up ownCloud from 127.0.0.1 and accessing it from the domain above the trusted domain error should be shown if not specified in the config

Fixes https://github.com/owncloud/core/issues/14320

Update phpseclib to version 0.3.9.

Add mapping for a broken varchar type.

Use APCu only if available in version 4.0.6 and higher