[tx-robot] updated from transifex

apps/files_encryption/l10n/cs_CZ.php

apps/files_encryption/l10n/pt_BR.php

apps/files_versions/l10n/ja_JP.php

apps/user_webdavauth/l10n/ja_JP.php

core/l10n/cs_CZ.php

l10n/af_ZA/core.po

l10n/af_ZA/files_sharing.po

l10n/af_ZA/lib.po

l10n/af_ZA/settings.po

l10n/af_ZA/user_ldap.po

l10n/ar/core.po

l10n/ar/files_sharing.po

l10n/ar/lib.po

l10n/ar/settings.po

l10n/ar/user_ldap.po

l10n/bg_BG/core.po

l10n/bg_BG/files_sharing.po

l10n/bg_BG/lib.po

l10n/bg_BG/settings.po

l10n/bg_BG/user_ldap.po