v1.2 changes

added:
B enemy: leaves a bomb on death
¶¶ upgrade: gives 2 random upgrades
∞¿ upgrade: reuse scrolls, lose all scrolls on descent
option to play same seed again

changed:
scroll/enemy type selection tweaked to be more extreme
‼] upgrade sets your attack to 0, no longer gives ¢
║α upgrade always spawns 2 enemies
enemies killed by ▲ scroll don't leave an unidentified scroll
unidentified scrolls don't appear in the stairs, can appear on multiple depths
minor changes to tooltips and UI

bug fixes:
lunge attacking onto stairs
dying farther than 175
loading invalid replay files