Fix theme logo position and shape

Add proper scope to files external CSS

* for select2

Add "Recent" file listing

AppFramework add default values (ApiController) as parameters

fix autoloading in LPAP integration tests, resolves #544

Renamed file logging

Fix error message while restoring all files

* use $_POST['files'] only of ssinlge files are restored
* fixes #528

Make sure we try to autoload the class

change core to server

Check if an app provide two-factor-auth providers before we try to use them

* fix searchbox overlapping on mobile

* also adjust log in background color in theme

* Fix unit tests

Set proper status code in OCS AppFramework Middleware

bumb compatible app versions for core apps

OCS correctly handle login exception

make the logo look good on the login page