More work on using interior mutability instead of exterior mutability for dynamic types (Battle, Pokemon, etc).

src/dynamic_data/flow/choice_queue.rs

@@ -19,7 +19,7 @@ impl<'battle, 'library> ChoiceQueue<'battle, 'library> {
     }
 
     pub fn peek(&mut self) -> &'battle TurnChoice {
-        &self.queue[self.current].as_ref().unwrap()
+        self.queue[self.current].as_ref().unwrap()
     }
 
     pub fn has_next(&self) -> bool {