Varied invisible code streamlining to speed up gameplay by a bit.
Shop item descriptions now expand when hovered, accommodating spell scrolls and some other items with longer descriptions.
Fix some buggy interactions between "autonomous", "persistent", or "trap" spells and some spell modification upgrades (Double Durations, Wild Magic, etc.).
Adjust Doom spawn timer based on the level (should give you enough time to beat the more difficult levels now).