more ReBuffer<> updates

src/sdr/SDRPostThread.cpp

@@ -229,7 +229,7 @@ void SDRPostThread::threadMain() {
         data_in->decRefCount();
     }
 
-//    buffers.purge();
+    buffers.purge();
     
     if (iqVisualQueue.load() && !iqVisualQueue.load()->empty()) {
         DemodulatorThreadIQData *visualDataDummy;

src/sdr/SDRThread.cpp

@@ -298,7 +298,7 @@ void SDRThread::threadMain() {
         }
     }
 
-    // buffers.purge();
+     buffers.purge();
     
     std::cout << "SDR thread done." << std::endl;
 }