use correct app-icon class for new apps as well, fix icon size
Add ability to theme iOS and Android client URLs just like desktop URLs.

* added to personal settings page.
* fix uppercase issue
* remove escaping because it's unneeded
Fix getting group '0' from database backend

Fix #9972
Fix isLoggedIn() check for user '0'

Fix #9972

Conflicts:
	lib/private/user/session.php
make sure that the versions array contains the correct path
add unit test to make sure getVersions returns the correct result
remove unused variable
remove trailing slash from path
Merge pull request #10204 from owncloud/backport-10144-stable7

Backport of #10144 to stable7
InstanceId is properly injected into factory. Remove comment.
Memcache\Factory: Remove static, use globalPrefix.
Add registerAutoloaderCache().
prevent PHP errors and enhance logging
fix return documentation
dont strip the s from the resource
use id instead of resourceId
Merge pull request #10226 from owncloud/fix-lowlat-cache-autoload-stable7

Fix lowlat cache autoload stable7
Fix Folder::getById
return null instead of throwing an exception
Fix SharedCache::getPathById