[rules-dev] 4.0.4

Now that we have the modify keyword backported to 4.0.x we should use this for all the examples, as "update" is now redundant inside of the consequence. Also should switch over manners and waltz and disable shadow proxies - he we need to update docs too to explain this. Once those are done, lets release 4.0.4, was hoping to do it before xmas but as fernando has been busy elsewhere, it looks like it'll be in the first week or so of the new year. Mark