3D Photo Studio

This is the "Photo Studio" feature I have been working on for a while. A new menu option opens a window where you can create a more artfully presented image of your model, against a handful of background choices or a solid color.

The image may be saved or copied to the clipboard.

## Overall look

![image](https://f.cloud.github.com/assets/1305026/2055609/d4c72ffc-8ac7-11e3-96ce-77fed87bf2dc.png)

## Gallery of images created with this feature

http://imgur.com/a/X3o1o

## Future work that could improve this:

* Saving the settings for an image
* Loading your own background image
* Saving / copying with alpha channel
* Per-motor flame and smoke options

## Things to note
* An **extra 6MB of images** in the jar.
* A bunch of new translation keys.
* Some of the images are Creative Commons Attribution 3.0, notices retained, and I do show attribution in the settings window:

![image](https://f.cloud.github.com/assets/1305026/2055660/b7757e30-8ac8-11e3-8555-85fff7b69460.png)