Covenant charter discussion

Frère Sulpice did voice concerns here: a deletion and a changed word to make the Triamore charter digestible to Christian signataries, and the introduction of a way of sígning it, which makes the signataries' allegiances transparent.

There is also still the role playing element of Frère Sulpice talking the charter and his handling of it over with Pahalia, which I leave to @Xavi.