Fixes and improvements

• New app icons
• New scene: 2 x generic phones, one upside down. Rotate z 180 degrees to show the other design.

• Clay mode lighting would be off if you didn't check 'Simple lighting'. So we asked Rotato to just do that for you every time you click the Clay checkbox.
• The adjustable round corners on the Universal device were slightly jaggy when zoomed in, so we straightened things out. Now they are smooth as math.