Updates bed and blanket sprites to not be ancient.

 Credit to Wjohnston for base sprite and Pete for modifying it faster than I could.

![image](https://f.cloud.github.com/assets/4343468/1162529/3bef73b2-2018-11e3-9111-932a6cea4dea.png)
![image](https://f.cloud.github.com/assets/4343468/1162530/4845b662-2018-11e3-8282-f8eea61f7d26.png)
![image](https://f.cloud.github.com/assets/4343468/1162532/649e1c00-2018-11e3-9bac-2f53da42399e.png)

Oh gosh I hope those images work.