adjust ideal progression
stats: fix warrior benefit
stats: return new LevelProgression each time to allow modification
stats: revise main.py printing
stats: allow NONE in improved_progression
stats: return new class each time to allow modifications
fix get_progression names to be more clear
stats: include get_progression functions
stats: fix get_monster_progression import
stats: rebalance aboleth
rebalance achaierai
claws can be light
rebalance natural armor progression
outsider has poor nat AC by default
fix group file parsing code
renamed animated objects group file
add mindless ability
add slam attack
remove debug print statements
add missing SIZE_SMALL to SIZES