- Fixes to hkl code

- Fixes to make RITA work
- tasub extended to calculate UB from cell alone, support for elastic mode
- New MultiCounter as abstraction for counting on HM's
- regression test driver for counters

histmem.c

@@ -171,7 +171,9 @@
              iRet = self->pDriv->Start(self->pDriv, pCon);
              if(iRet == OKOK)
              {
-	       updateHMData(self->pDriv->data);
+               /* send a COUNTSTART event */
+               InvokeCallBack(self->pCall,COUNTSTART,pCon);
+         	   updateHMData(self->pDriv->data);
                return iRet;
              }       
              else
@@ -721,8 +723,6 @@ void HistDirty(pHistMem self)
  {
     assert(self);
 
-    /* send a COUNTSTART event */
-    InvokeCallBack(self->pCall,COUNTSTART,pCon);
 
     /* start */
     return StartDevice(GetExecutor(),"HistogramMemory", self->pDes, self,
@@ -744,9 +744,6 @@ void HistDirty(pHistMem self)
       return 0;
     }
     
-    /* send a COUNTSTART event */
-    InvokeCallBack(self->pCall,COUNTSTART,pCon);
-    
      /* wait till end */
      iRet = Wait4Success(GetExecutor());
      if(iRet == DEVINT)