core (disco): disco hashes are now stored in database to avoid doing the same disco request on next load

src/memory/memory.py

@@ -246,6 +246,7 @@ class Memory(object):
         d = self.storage.initialized.addCallback(lambda ignore: self.load())
         self.memory_data = PersistentDict("memory")
         d.addCallback(lambda ignore: self.memory_data.load())
+        d.addCallback(lambda ignore: self.disco.load())
         d.chainDeferred(self.initialized)
 
     ## Configuration ##