Assorted bug fixes

- If SctProcessNode ran into a timeout, its action data wa sdeleted. If data came
  later, this caused SICS to crash. This is now fixed
- sget leaked connections under certain circumstances
- Cosmetic fix to hipadaba.c
- yet another chnage to the TRICS file format in fourmess.c, now it prints magnetic field
  instead of the proton count

sicsget.c

@@ -153,6 +153,7 @@ static int InvokeSICSFunc(void *ms, void *userData)
   SCsetMacro(pCon,0);
   if(!status){
     self->success = 0;
+    SCDeleteConnection(pCon);
     return MPSTOP;
   }
   self->response = strdup(Tcl_GetStringResult(InterpGetTcl(pServ->pSics)));