Gravity and Lights — Goblin Hotdogs Steam update #514021

While working on Level 2 I've made some changes that affect Level 1 in positive ways. The first change is that I've optimized some of the sky lighting. This should lead to some performance improvements. The second change is that hotdogs respond better to gravity. Sometimes hotdogs resting on targets remained suspended in the air even after the target under them was destroyed. This should now be fixed.