rename constants
add quota streamwrapper that limits the amount of data that can be written to a stream
move storage wrapper test to new namespace
add quota storage wrapper
fix getPermissionsCache for storage wrapper
add option to wrap existing mounts
use renamed constants
add conveince function to wrap all storages
use storage wrapper for quota instead of a filesystem proxy
use renamed constants
user interface to allow user to decrypt all his files once the encryption app was disabled

Conflicts:
	settings/templates/personal.php
add ajax call to decrypt all files

Conflicts:
	apps/files_encryption/lib/crypt.php
register decrypt all route
add decryptall.php
working decrypt files method
improved error handling
use path relative to data/
only write keyfiles if it was a new file, otherwise nothing changed
check if app is enabled
encrypt/decrypt file versions