Print house count at start

src/main.rs

@@ -35,7 +35,7 @@ fn main() {
         eprintln!("Starting random population, using DB ({}-{} {})...",
                   MIN_WEIGHT_SCORE, MAX_WEIGHT_SCORE, DB_CHOICE_PROBABILITY);
         population::populate_using_db(&mut layout, &mut rng, &db, MIN_WEIGHT_SCORE, MAX_WEIGHT_SCORE, DB_CHOICE_PROBABILITY);
-        eprintln!("Finished random init, price: {}", layout.price());
+        eprintln!("Finished random init, price: {}, houses: {}", layout.price(), layout.houses().len());
         loop {
             let mut improved = false;
             eprintln!("Starting moving individual houses...");