cherry-pick from readWIPseperatelly. updateNext of MachineJobSShop updated in...

cherry-pick from readWIPseperatelly. updateNext of MachineJobSShop updated in order to avoid updating the next list if there is no next step in the remaining route of the activeEntity

dream/simulation/MachineJobShop.py

@@ -125,6 +125,9 @@ class MachineJobShop(Machine):
         activeEntity=entity
         # read the possible receivers - update the next list
         import Globals
+        # XXX: in the case of MouldAssembler there is no next defined in the route of the entities that are received
+        # the position activeEntity.remainingRoute[1] is out of bound. the next should be updated by the remaining route of the entity to be assembled
+        if len(activeEntity.remainingRoute)>1:
             nextObjectIds=activeEntity.remainingRoute[1].get('stationIdsList',[])
             nextObjects = []
             for nextObjectId in nextObjectIds: