Fix url gen to use id

sql_structs.go

@@ -96,7 +96,7 @@ func (b *Board) SomeEntries(start, end int64) ([]*Entry, error) {
 }
 
 func (b *Board) Url() string {
-	return "/board?id=" + b.Name
+	return "/board?id=" + strconv.Itoa(int(b.ID))
 }
 
 // implementation of Jsonable