Distinguish bots from humans.

Players column now have three integers - first is real humans
count, second - bots count, and third - maximum players allowed
on this server. Also, sidebar will show bots count as well.

database/migrations.go

@@ -48,6 +48,7 @@ func migrate_full(db *Database, version int) {
     if version == 6 {six_to_seven(db); version = 7}
     if version == 7 {seven_to_eight(db); version = 8}
     if version == 8 {eight_to_nine(db); version = 9}
+    if version == 9 {nine_to_ten(db); version = 10}
 }
 
 // Initial database structure.
@@ -115,3 +116,10 @@ func eight_to_nine(db *Database) {
     db.Db.MustExec("ALTER TABLE servers ADD is_private VARCHAR(1) NOT NULL DEFAULT '0'")
     db.Db.MustExec("UPDATE database SET version=9")
 }
+
+// Bots count.
+func nine_to_ten(db *Database) {
+    fmt.Println("Upgrading database from 9 to 10...")
+    db.Db.MustExec("ALTER TABLE servers ADD bots VARCHAR(2) NOT NULL DEFAULT '0'")
+    db.Db.MustExec("UPDATE database SET version=10")
+}