Matching Rules and Duplicate Rules are a new feature in Salesforce. I see that matching rules can be pulled as metadata xml, but I can't find any documentation about packaging them.
Can matching rules be bundled in a managed package? Is it a good idea? Can they be considered akin to validation rules? Or should they be considered org level settings? What can be changed by the developer once it's packaged? What can be changed by the end user once it's packaged? Can it be deleted from the package?