[GeneralDiscussion] darcs send change

I've updated the description of darcs send behaviour at DarcsRepos.  
Latest policy is this:

- darcs send to either the stable or unstable repo sends the patch to  
GeneralDiscussion for review. Currently this makes manual cleanup  
necessary on the page, but I hope to solve this soon.

- someone with direct repo access (currently Simon and Sascha) applies  
the patch, once approved

- there is also a secret address for each repo to which you can darcs  
send to bypass the review step. Ask on #zwiki for this if the review  
step is too much overhead for some reason.

- I myself pretty often just push patches over ssh

- however it happens, both repos send a "patch applied" notification  
to GeneralDiscussion when a change goes in

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forwarded from http://zwiki.org/GeneralDiscussion#[email protected]