Fix wrong column usage in 2017 poll stats
Fix wrong column usage in 2017 poll stats

We were using the original (already removed) "name" column in the polls
table, instead of using the one in the translations table.

AyuntamientoMadrid/consul,AyuntamientoMadrid/consul,AyuntamientoMadrid/consul,AyuntamientoMadrid/consul