Merge pull request #10420 from owncloud/external-share-self-signed

apps/files_external/ajax/addRootCertificate.php

apps/files_external/ajax/removeRootCertificate.php

apps/files_external/lib/config.php

apps/files_external/personal.php

apps/files_external/templates/settings.php

apps/files_sharing/lib/external/manager.php

apps/files_sharing/lib/external/storage.php

apps/files_sharing/tests/externalstorage.php

lib/private/l10n.php

lib/private/security/certificate.php

lib/private/security/certificatemanager.php

lib/private/server.php

lib/public/icertificate.php

lib/public/icertificatemanager.php

lib/public/iservercontainer.php

settings/ajax/addRootCertificate.php

settings/ajax/removeRootCertificate.php

settings/css/settings.css

settings/js/personal.js

settings/personal.php