- track m2m simplify using native mail_thread and process them like text
- simplify code for track one2many
- avoid useless code on model not impacted by the tracking
For example on the product if you open the 'stock.putaway.rule'
you have activated the tracking on putaway_rule_ids
change on rule should be posted on the related product
- remove tracking_model (less model, less code, less issue)
- add automatic rule for default config (this avoid missing tracked field
after module installation)