Ads boat to parking lot and makes parking spaces "shorter"

I decided to make the parking spaces "shorter" in respect of the rest of the design of the game. The boat doesn't have any platforms as it's more in the background.

![Screenshot_21 02 13_00_44](https://f.cloud.github.com/assets/2606287/178408/7863c9de-7bb7-11e2-963c-d6a4639b302f.png)