updated channel messages proto to include the timestamp

channels/channelMessages.proto

@@ -36,6 +36,12 @@ message ChannelMessage{
     // round with that have the same nickname, payload, and lease will not have
     // the same message ID.
     bytes Nonce = 6;
+
+    // LocalTimestamp is the timestamp when the "send call" is made based upon the
+    // local clock. If this differs by more than 5 seconds +/- from when the round
+    // it sent on is queued, then a random mutation on the queued time (+/- 200ms)
+    // will be used by local clients instead
+    int64 LocalTimestamp = 7;
 }
 
 // UserMessage is a message sent by a user who is a member within the channel.