[rules-dev] 4.0.4

[Mark Proctor]

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