change 'classic mode' checkbox for standalone/thinclient radio buttons
Move Interface page to top in preferences
Gtkui: Add an alignment container to radio buttons in interface preferences
Remove unneeded dht saving state to separate file

The dht state is now saved by default in the session state by libtorrent
Move stray extractor plugin file to correct location
Remove old plugins
UI client.connect() with no credentials/username now attempts connect using localhost auth file details
ConsoleUI: Tidy up help output and limit command usage message to one line
ConsoleUI: quit command now gracefully handles stopping a stopped reactor
Ensure console commands are executed in order
Only add quit to deluge-console args if it isn't already present

This prevents an error from being raised due to trying to stop
a reactor which is no longer running
Fix LP#1004793 : Console: Enable use of connect in non-interactive mode