polished rushouse , changed footprint and Exclude -> RequiresTileset Temperat

made it smaller and worked with a blurring-tool, so it fits better to
the westwood-stuff

![gitscreen](https://f.cloud.github.com/assets/1997864/1808818/eb8e7de8-6d7c-11e3-8820-568f15bffb1e.png)