Add an option to disallow sending sharing emails to non-owncloud users

Add getTagsForObjects in ITags

Allow autocomplete for test file in autotest.sh

Fix namespaces of encryption classes and encryption tests

Fix #10836

Add requesttoken to base template

Fix Contactsmanager permission + unit test

translated saved message in files external

introduce alt text for rename icon - fixes #12067

remove duplicate loaded personal.js - fixes #12674

Skip headers that can not be split

Config cleanup - OC_Preferences refactoring

Add a public api for apps to add mounts

* files_encryption
* files_versions
* files_trashbin
* tests
* status.php
* core
* server container

* this needs to be properly fixed by a proper organisation of the base.php
* introduced fixDIInit() in AllConfig that moves the injection
  of DatabaseConnection to a later point in time
* problems mostly because of the autoconfig setup

* keep old static methods - mapped to new ones and deprecated
* removed deleteApp, getUsers, getApps because they are unused
* make AllConfig unit tests more robust against not cleaned up environments

* introduce SystemConfig to avoid DI circle (used by database connection which is itself needed by AllConfig that itself contains the methods to access the config.php which then would need the database connection - did you get it? ;))
* use DI container and use that method in legacy code paths (for easier refactoring later)
* create and use getSystemConfig instead of query() in DI container

Returns the list of tags that are set on the given object ids.

Add REST route for managing groups and users

preserve an asterisk at the start when escaping a search term