- new implementation of messaging

- fixed possible crash when messages arrive before accounts are created
- other minor fixes and improvements

app/src/main/kotlin/com/tutpro/baresip/Message.kt

@@ -2,6 +2,6 @@ package com.tutpro.baresip
 
 import java.io.Serializable
 
-class Message(val aor: String, val peerURI: String, var direction: Int, val message: String,
+class Message(val aor: String, val peerUri: String, var direction: Int, val message: String,
               val timeStamp: Long, var new: Boolean): Serializable {
 }