Another indirection removed

tradedb.py

@@ -35,21 +35,23 @@ class Station(object):
     def __init__(self, ID, system, station):
         self.ID, self.system, self.station = ID, system.replace(' ', ''), station.replace(' ', '')
         self.links = {}
-        self.stations = []
+        self.stations = {}
 
     def addTrade(self, dest, item, itemID, costCr, gainCr):
         """ Add a Trade entry from this to a destination station """
         dstID = dest.ID
         if not dstID in self.links:
             self.links[dstID] = []
-            self.stations.append(dest)
+            self.stations[dest] = None
         trade = Trade(item, itemID, costCr, gainCr)
         self.links[dstID].append(trade)
 
     def organizeTrades(self):
-        for station in self.links:
-            items = self.links[station]
+        for dstID in self.links:
+            items = self.links[dstID]
             items.sort(key=lambda trade: trade.gainCr, reverse=True)
+        for dest in self.stations:
+            self.stations[dest] = self.links[dest.ID]
 
     def __str__(self):
         str = self.system + " " + self.station