-[FEATURE] When updating an instance `_previousDataValues` will now be updated after `afterUpdate` hooks have been run rather than before allowing you to use `changed` in `afterUpdate`
-[BUG] Sequelize will no longer fail on a postgres constraint error not defined by Sequelize
-[FEATURE] It's now possible to pass an association reference to include. `var Owner = Company.belongsTo(User, {as: 'owner'}; Company.findOne({include: [Owner]});`
-[BUG] Fixes crash with `findAll({include: [Model], order: sequelize.literal()})`
#### Backwards compatability changes
- When updating an instance `_previousDataValues` will now be updated after `afterUpdate` hooks have been run rather than before allowing you to use `changed` in `afterUpdate`
