Adds fancy batch files for preparemap and cleanmap in maptools

pros:
* Asks you to choose a map
* Lets you choose which map to backup/clean
* Yells at you if the map you chose isn't backed up
* Yells at you if you didn't pick an actual map
* Looks fancy

cons:
* You have to choose the map every time
* Takes slightly longer
* The list of maps isn't ordered correctly because batch

![new_clean_example](https://f.cloud.github.com/assets/1355638/706871/3705f48a-ddff-11e2-8149-e1c60b89ca75.png)