Changelog and doc

Author: rcorniere

CHANGELOG.md

@@ -8,6 +8,8 @@
 - Added message queue : when using "SendX" methods on a client, messages are also stored in a queue. When requesting
 acks from the server, sent messages will be discarded, and unsent ones will be sent again. (see https://xmpp.org/extensions/xep-0198.html#acking)
 - Added support for stanza_errors (see https://xmpp.org/rfcs/rfc3920.html#def C.2.  Stream error namespace and https://xmpp.org/rfcs/rfc6120.html#schemas-streamerror)
+- Added separate hooks for connection and reconnection on the client. One can now specify different actions to get triggered on client connect 
+and reconnect, at client init time.
 - Client state update is now thread safe
 - Changed the Config struct to use pointer semantics
 - Tests

router.go

@@ -81,6 +81,7 @@ func (r *Router) route(s Sender, p stanza.Packet) {
 	}
 }
 
+// SendMissingStz sends all stanzas that did not reach the server, according to the response to an ack request (see XEP-0198, acks)
 func SendMissingStz(lastSent int, s Sender, uaq *stanza.UnAckQueue) error {
 	uaq.RWMutex.Lock()
 	if len(uaq.Uslice) <= 0 {
@@ -100,7 +101,7 @@ func SendMissingStz(lastSent int, s Sender, uaq *stanza.UnAckQueue) error {
 			}
 
 		}
-		// Ask for updates on stanzas we just sent to the entity
+		// Ask for updates on stanzas we just sent to the entity. Not sure I should leave this. Maybe let users call ack again by themselves ?
 		s.Send(stanza.SMRequest{})
 	}
 	uaq.RWMutex.Unlock()