(i) add PRINT_LEVEL to the command block (0='nothing' to

3='everything'). This allows to tune the Minuit2 output. (ii) added the
possibilty to give the fit range in bins. For details see the docu.

src/musrview.cpp

@@ -247,6 +247,8 @@ int main(int argc, char *argv[])
   else
     dataHandler = new PRunDataHandler(msrHandler);
 
+  dataHandler->ReadData();
+
   success = dataHandler->IsAllDataAvailable();
   if (!success) {
     cerr << endl << ">> musrview **ERROR** Couldn't read all data files, will quit ..." << endl;