add templatekeyword in a proper location

Remove useless comment.

add dedicated command to mark changeset as published or ready This command coul be generated.

reorder extsetup

Get ride of dedicated heads property. This is now handle throught a generic repo.stateheads(state) methode.

rename state related attributes frozen is now published public is now ready

update doc

state are now object.

introduce a third state

stronger tests

Add write protocol support for private. Writeprotocol repo doesn't need to _reducehead locally. It's the heads command implementation server side that handle the filtering.

merge

fix clone

http test