Merge pull request #3938 from xoriole/tftp_issue_3932

TFTP shutdowns before Dispersy now

Tribler/Core/APIImplementation/LaunchManyCore.py

@@ -934,6 +934,10 @@ def early_shutdown(self):
 
         self.tracker_manager = None
 
+        if self.tftp_handler is not None:
+            yield self.tftp_handler.shutdown()
+        self.tftp_handler = None
+
         if self.tunnel_community and self.trustchain_community:
             # We unload these overlays manually since the TrustChain has to be unloaded after the tunnel overlay.
             tunnel_community = self.tunnel_community
@@ -965,10 +969,6 @@ def early_shutdown(self):
             yield self.metadata_store.close()
         self.metadata_store = None
 
-        if self.tftp_handler is not None:
-            yield self.tftp_handler.shutdown()
-        self.tftp_handler = None
-
         if self.channelcast_db is not None:
             yield self.channelcast_db.close()
         self.channelcast_db = None