Make sure config files, resume data and state are fsync'd when saved. This should help prevent data

losses on crashes/improper shutdowns.

deluge/core/torrentmanager.py

@@ -541,6 +541,8 @@ class TorrentManager(component.Component):
                 os.path.join(self.config["state_location"], "torrents.state.new"),
                                                                         "wb")
             cPickle.dump(state, state_file)
+            state_file.flush()
+            os.fsync(state_file.fileno())
             state_file.close()
         except IOError:
             log.warning("Unable to save state file.")