production.simba bitmap update

Edit: Use turp's commit since he updated something I didn't.

Changes in the interface background broke productionscreen.__find and .isOpen and other related functions.  Updated the bitmap.

broken demonstration: http://i.gyazo.com/585766fdcf2ab7c26c0bed80351dd79f.png

bitmaps comparison that I think caused the breaking: http://i.gyazo.com/1aef79b184839a012fac1e0a441eb895.png

Before merging maybe someone else should test out whether it is broken for them, I don't know why it would randomly break for just me though.