Adding computerFileSize in OC.Util

Filter filenames by pattern.

* Ensure adding resource only once

* Introduced file path key and additional test

* fixed Scrutinizer issues

* some cosmetic works

* ResourceLocatorTest uses vfsStream

* Let apps register Sabre plugins or collections

* Move comments DAV plugins to comments app

* Fix use OCP\AppFramework\QueryException;

If share times are equal, the first share should still win instead of
having the shares swapped.

On some environments, PHP parses some file names differently instead of
returning NULL. For example a date like "2016-12-01" would get parsed
as the integer value "2016".

This fix changes the internal URL download format to use either a
single "files" parameter or multiple "files[]" parameters to specify
files to download.

Remove obsolete RepairLegacyStorages repair step

Check shipped apps when running from cli

Tweak CodeChecker

Integrity check: Return 1 if it is failed. Fixes #22806

[AppManager] Adding methods to install and upgrade an app - as well a…

fixed overwriting templates through themes

using findTemplate in inc looks for templates in the currently active theme, that way themes can override templates
removed unnecessary comments and return values, added useful comments and missing docblocks
fixed testcase to not use a theme

remove redundant php_value definitions in php5 and php7 ifmodule blocks

Fix for app groups setting preservation

Admin: Nag about cron and redis settings

Port isTargetAllowed to share 2.0

Moved SQLite setup warning to top.

Introduce public storage class for extending