[Telepathy] Announce: telepathy-spec 0.25.1

[Will Thompson]

The “farewell whiskey chess” release. Don't read it all at once!

API additions and clarifications:

• Call1.Content.Interface.AudioControl is a wonderful new interface to
   allow the connection manager to recommend volume changes during calls.

• The various values of Socket_Access_Control have enjoyed some
   clarification of their meanings on different tube types.

• Protocol.Interface.Addressing has been undrafted, with NormalizeURI
   renamed to NormalizeContactURI.

• Connection.Interface.Addressing is still a draft, but its methods have
   been changed to split the return values into two mappings.

-- 
Will