- Implemented defpos for multiple motors

- Implemented automatic backup on parameter change
- Implemented silent restore
- Cleaned a couple of unused flags from connection object

hmdata.c

@@ -25,6 +25,7 @@ pHMdata makeHMData(void) {
   }
   memset(self,0,sizeof(HMdata));
   self->nTimeChan = 1;
+  self->updateFlag = 1;
   
   return self;
 }
@@ -324,6 +325,10 @@ long sumHMDataRectangle(pHistMem hist, SConnection *pCon,
    }
   }
  
+  if(self->localBuffer == NULL){
+    resizeBuffer(self);
+  }
+
   /*
     get an update of the HM if necessary
   */