[tx-robot] updated from transifex

apps/files_encryption/l10n/el.js

apps/files_encryption/l10n/el.json

apps/files_encryption/l10n/es.js

apps/files_encryption/l10n/es.json

apps/files_sharing/l10n/el.js

apps/files_sharing/l10n/el.json

apps/user_ldap/l10n/el.js

apps/user_ldap/l10n/el.json

apps/user_ldap/l10n/nl.js

apps/user_ldap/l10n/nl.json

core/l10n/ast.js

core/l10n/ast.json

core/l10n/el.js

core/l10n/el.json

l10n/templates/core.pot

l10n/templates/files.pot

l10n/templates/files_encryption.pot

l10n/templates/files_external.pot

l10n/templates/files_sharing.pot

l10n/templates/files_trashbin.pot