Eliminate compiler warnings

src/modbus.w

         float floatresponse;
         char *ibytes = (char*)&intresponse;
         char *fbytes = (char*)&floatresponse;
-        double output;
+        double output = 0.0;
         switch(scanList.at(scanPosition).format)
         {
             case Int16:

src/typica.w

         {@t\1@>@/
             case 4:@/
                 arg4 = argument<int>(3, context);
+                arg3 = argument<int>(2, context);
+                arg2 = argument<int>(1, context);
+                arg1 = argument<int>(0, context);
+                break;
             case 3:@/
                 arg3 = argument<int>(2, context);
+                arg2 = argument<int>(1, context);
+                arg1 = argument<int>(0, context);
+                break;
             case 2:@/
                 arg2 = argument<int>(1, context);
                 arg1 = argument<int>(0, context);
+                break;
             default:@/
                 break;@t\2@>@/
         }
         {@t\1@>@/
             case 4:@/
                 arg4 = argument<int>(3, context);
+                arg3 = argument<int>(2, context);
+                arg2 = argument<int>(1, context);
+                arg1 = argument<int>(0, context);
+                break;
             case 3:@/
                 arg3 = argument<int>(2, context);
                 arg2 = argument<int>(1, context);
                 arg1 = argument<int>(0, context);
+                break;
             default:@/
                 break;@t\2@>@/
         }