added comments

ChangeLog

@@ -30,9 +30,6 @@
 - bug fix: server window stop updating after minimized, coded by AronVietti (#355, #383)
 
 
-TODO add "Update Jamulus Version" in register response errors
-
-TODO add new register message which contains version and, e.g., max number of clients
 
 TODO clip LED on channel faders goes on too early (compare to input level meter clip LED)
      -> only 3 of 4 bits of the channel level protocol are actually used, one bit is wasted
@@ -45,6 +42,8 @@ TODO support clip indicator for bar meter as well
 
 TODO the new translation loading does not work on MacOS
 
+TODO add new register message which contains version and, e.g., max number of clients
+
 TODO https://github.com/corrados/jamulus/issues/341#issuecomment-647172946
      - generate .qm on compile time with lrelease
      - download nsProcess.dll on Windows installer creation instead of put it in the repo

src/levelmeter.cpp

@@ -60,7 +60,7 @@ CLevelMeter::CLevelMeter ( QWidget* parent, Qt::WindowFlags f ) :
     // initialize bar meter
     pBarMeter = new QProgressBar();
     pBarMeter->setOrientation ( Qt::Vertical );
-    pBarMeter->setRange ( 0, 100 * NUM_STEPS_LED_BAR );
+    pBarMeter->setRange ( 0, 100 * NUM_STEPS_LED_BAR ); // use factor 100 to reduce quantization (bar is continuous)
     pBarMeter->setFormat ( "" ); // suppress percent numbers
 
     // setup stacked layout for meter type switching mechanism

src/protocol.cpp

@@ -381,6 +381,7 @@ CONNECTION LESS MESSAGES
       Values of ESvrRegResult:
       0 - success
       1 - failed due to central server list being full
+      2 - your server version is too old
 
     Note: the central server may send this message in response to a
           PROTMESSID_CLM_REGISTER_SERVER request.