added changelog entry, added test channel

ChangeLog

@@ -1,7 +1,10 @@
 3.0.2
 
 - fix for Jack Linux audio interface: ports are only once registered and
-  connect when the software is started up
+  connect when the software is started up
+
+- bug fix: under bad network conditions chat messages were randomly repeated
+
 
 3.0.1
 
@@ -14,6 +17,7 @@
 - use low complexity CELT encoder profile, this lowers audio dropout
   probability on slow computers
 
+  
 3.0.0
 
 - introduced new audio codec "CELT", not compatible to old versions
@@ -27,6 +31,7 @@
 
 - various bug fixes (e.g. disconnecting did not work reliably)
 
+
 2.3.0
 
 - new system sample rate of 33 kHz to improve audio quality, not compatible

src/protocol.cpp

@@ -308,6 +308,12 @@ bool CProtocol::ParseMessage ( const CVector<uint8_t>& vecbyData,
 
     if ( !ParseMessageFrame ( vecbyData, iNumBytes, iRecCounter, iRecID, vecData ) )
     {
+
+/*
+// TEST channel implementation: randomly delete protocol messages (50 % loss)
+if ( rand() < ( RAND_MAX / 2 ) ) return false;
+*/
+
         // In case we received a message and returned an answer but our answer
         // did not make it to the receiver, he will resend his message. We check
         // here if the message is the same as the old one, and if this is the