Fix a variety of DBC related issues, update version number at last (with plans to release soon!)

dbc/dbc_classes.cpp

@@ -17,7 +17,10 @@ void DBC_SIGNAL::addMultiplexRange(int min, int max)
     if (min != max)
         hasExtendedMultiplexing = true;
     isMultiplexed = true;
-    multiplexLowAndHighValues.append(QPair<int, int>(min, max));
+    //it is very likely that things that include extended multiplexing will have at least two definitions
+    //which are identical. So, detect this and don't store on subsequent calls
+    if (!multiplexLowAndHighValues.contains(QPair<int, int>(min, max)))
+        multiplexLowAndHighValues.append(QPair<int, int>(min, max));
 }
 
 bool DBC_SIGNAL::isSignalInMessage(const CANFrame &frame)
@@ -76,6 +79,15 @@ void DBC_SIGNAL::copyMultiplexValuesFromSignal(const DBC_SIGNAL &signal)
     }
 }
 
+/*
+ * multiplexLowAndHighValues is private but the DBC saving code needs to be able to save a reasonable value for the multiplex value
+ * for non-extended multiplex values. So, we grab the first element of the first item which should be the non-extended value
+ */
+int DBC_SIGNAL::getSimpleMultiplexValue()
+{
+    return multiplexLowAndHighValues.at(0).first;
+}
+
 /**
  * @brief DBC_SIGNAL::parseDbcMultiplexUiString
  * Method for parsing the Vector CANDB++ like multiplex definitions: