change log
chance percent of 0 will negate looting.
added new configs
"apply_looting: true"

"wandering_trades.keep_default_trades: true"
"wandering_trades.player_heads.enabled: true"
"wandering_trades.player_heads.min: 0"
"wandering_trades.player_heads.max: 3"
"wandering_trades.block_heads.enabled: true"
"wandering_trades.block_heads.min: 0"
"wandering_trades.block_heads.max: 5"
"wandering_trades.custom_trades.enabled: true"
"wandering_trades.custom_trades.min: 0"
"wandering_trades.custom_trades.max: 5"

added permission
moremobheads.customtrader:
description: Allows player to use custom trader commands.
default: op
added custom_trades.yml
which allows adding custom trades with chance percents.
added 4 new commands
/mmh ct
/mmh ct add
/mmh ct remove #
/mmh ct replace #
Changed config.yml format to group like things.
Split config.yml into two files, config.yml and chance_config.yml