Make people be able to vote for the next map

Hello World
On the few servers I play, each time the map is changing, someone calls a vote to load the last one. So we have to reload a new map, to wait again for the warmup... In order to avoid it, a vote for the next map would be perfect, what do you think about that ?
Something that could be good too would be to automatically call a vote for "Keep the same map" and the end of a round, when scores are displayed....
I hope you like the idea