replaced tech, field, and gun text with orbs
orbs length scale with px->em
cleaned up simulation variables text in pause menu
some minor tech description changes
total tech count no longer includes instant tech or removed tech
tech: planned obsolescence - at the start of each level eject your oldest tech and gain 1.1 damage
heuristics 1.3 -> between 1 and 1.5 fire rate
combinatorial optimization 1.35->1.4 damage
difficulty reduction per level
0.85->0.87x damage done
1.23->1.22 damage taken
