- added backwards calculation of hkl from four circle angles. This

required inclusion of a matrix package.
- modified  counter error handling to send a Stop when the _BAD_BUSY
  error is received.
- added an environment interface to the general controller stuff in choco.*
  Also added setting a parameter directly at the controller object.
- Added a driver for the ETH High Temperature Furnace to be used at
  SANS.

countdriv.c

@@ -455,13 +455,24 @@
      case EL737__BAD_ILLG:
      case EL737__BAD_ADR:
      case EL737__BAD_PAR:
-     case EL737__BAD_BSY:
      case EL737__BAD_TMO:
      case EL737__BAD_REPLY:
      case EL737__BAD_SNTX:
      case EL737__BAD_OVFL:
               return COREDO;
               break;
+     case EL737__BAD_BSY:
+              strcpy(pCommand,"S \r");
+              iRet = EL737_SendCmnd(&pEL737->pData,pCommand,pReply,49);
+              if(iRet < 0)
+              {
+                 return COTERM;
+              }   
+              else
+	      {
+                 return COREDO;
+              }
+              break;
      case EL737__BAD_LOC:
               strcpy(pCommand,"rmt 1\r");
               iRet = EL737_SendCmnd(&pEL737->pData,pCommand,pReply,49);