[tx-robot] updated from transifex

apps/files_encryption/l10n/et_EE.php

apps/files_encryption/l10n/gl.php

apps/files_encryption/l10n/it.php

apps/files_encryption/l10n/ja_JP.php

apps/files_encryption/l10n/nl.php

apps/files_encryption/l10n/pl.php

apps/files_encryption/l10n/pt_BR.php

apps/files_encryption/l10n/pt_PT.php

apps/files_encryption/l10n/ru.php

apps/files_encryption/l10n/sk_SK.php

apps/files_encryption/l10n/zh_TW.php

apps/user_ldap/l10n/pl.php

apps/user_ldap/l10n/sk_SK.php

core/l10n/ru.php

l10n/af_ZA/files_encryption.po

l10n/ar/core.po

l10n/ar/files.po

l10n/ar/files_encryption.po

l10n/ar/files_external.po

l10n/ar/files_sharing.po