update license headers and authors

apps/encryption/appinfo/application.php

apps/encryption/appinfo/register_command.php

apps/encryption/appinfo/routes.php

apps/encryption/command/migratekeys.php

apps/encryption/controller/recoverycontroller.php

apps/encryption/controller/settingscontroller.php

apps/encryption/controller/statuscontroller.php

apps/encryption/hooks/contracts/ihook.php

apps/encryption/lib/crypto/crypt.php

apps/encryption/lib/crypto/encryption.php

apps/encryption/lib/hookmanager.php

apps/encryption/lib/migration.php

apps/encryption/lib/recovery.php

apps/encryption/lib/session.php

apps/encryption/lib/users/setup.php

apps/encryption/lib/util.php

apps/encryption/tests/controller/RecoveryControllerTest.php

apps/encryption/tests/controller/SettingsControllerTest.php

apps/encryption/tests/hooks/UserHooksTest.php

apps/encryption/tests/lib/HookManagerTest.php