Added box shadow to '.showcase' and '#footer' elements, removed '.wrap' to '#footer;

![Capture](https://f.cloud.github.com/assets/3666140/201018/4238a6b6-80e1-11e2-969b-c98cd0e135fc.PNG)
![Capture2](https://f.cloud.github.com/assets/3666140/201019/46ced6aa-80e1-11e2-83d8-becd5eda57f5.PNG)
![Capture3](https://f.cloud.github.com/assets/3666140/201020/49114a60-80e1-11e2-91eb-d2e59114c0dc.PNG)