[tx-robot] updated from transifex

apps/federatedfilesharing/l10n/is.js

apps/federatedfilesharing/l10n/is.json

apps/files_external/l10n/is.js

apps/files_external/l10n/is.json

apps/theming/l10n/is.js

apps/theming/l10n/is.json

apps/theming/l10n/ru.js

apps/theming/l10n/ru.json

apps/updatenotification/l10n/is.js

apps/updatenotification/l10n/is.json

apps/updatenotification/l10n/ru.js

apps/updatenotification/l10n/ru.json

apps/workflowengine/l10n/is.js

apps/workflowengine/l10n/is.json

core/l10n/de.js

core/l10n/de.json

core/l10n/de_DE.js

core/l10n/de_DE.json

core/l10n/is.js

core/l10n/is.json