mod_s2s: Retrieve TLS context for outgoing Direct TLS connections from mod_tls So that the same TLS context is used for both Direct TLS and starttls, since they are supposed to be functionally identical apart from the few extra round trips. A new event is added because the 's2s-created' event fires much later, after a connection has already been established, where we need the TLS context before that.

== 1.0 ==
- Roster providers
- Clustering
- World domination