WindowStatusPlugin fixes.

 - Use correct config binding names so that `shownone` actually works again.
 - Update the status on any channeluser mode changes not just window changes.

windowstatus/src/main/java/com/dmdirc/addons/windowstatus/WindowStatusManager.java

 import com.dmdirc.config.prefs.PreferencesDialogModel;
 import com.dmdirc.config.prefs.PreferencesSetting;
 import com.dmdirc.config.prefs.PreferencesType;
+import com.dmdirc.events.ChannelUserModeChangeEvent;
 import com.dmdirc.events.ClientPrefsOpenedEvent;
 import com.dmdirc.events.StatusBarComponentAddedEvent;
 import com.dmdirc.events.StatusBarComponentRemovedEvent;
         panel = UIUtilities.invokeAndWait(WindowStatusPanel::new);
         eventBus.publishAsync(new StatusBarComponentAddedEvent(panel));
         swingEventBus.subscribe(this);
+        eventBus.subscribe(this);
         configBinder.bind(this, WindowStatusManager.class);
         UIUtilities.invokeLater(this::updateStatus);
     }
      */
     public void onUnload() {
         swingEventBus.unsubscribe(this);
+        eventBus.unsubscribe(this);
         eventBus.publishAsync(new StatusBarComponentRemovedEvent(panel));
         configBinder.unbind(this);
         panel = null;
         event.getWindow().map(TextFrame::getContainer).ifPresent(this::updateStatus);
     }
 
+    @Handler
+    public void usermodeChange(final ChannelUserModeChangeEvent event) {
+        updateStatus();
+    }
+
     /** Update the window status using the current active window. */
     public void updateStatus() {
         activeFrameManager.getActiveFrame().ifPresent(c -> updateStatus(c.getContainer()));
                 if (!isFirst) {
                     textString.append(' ');
                 }
-                final String name = i > 0 ?
-                        Character.toString(channelUserModes.charAt(i)) : nonePrefix;
+                final String name = i > 0 ? Character.toString(channelUserModes.charAt(i)) : nonePrefix;
                 textString.append(name).append(count);
                 isFirst = false;
             }
         updateStatus();
     }
 
-    @ConfigBinding(key = "client.shownone", invocation = EDTInvocation.class)
+    @ConfigBinding(key = "channel.shownone", invocation = EDTInvocation.class)
     public void handleShowNone(final String value) {
         shownone = Boolean.valueOf(value);
         updateStatus();
     }
 
-    @ConfigBinding(key = "client.noneprefix", invocation = EDTInvocation.class)
+    @ConfigBinding(key = "channel.noneprefix", invocation = EDTInvocation.class)
     public void handleShowPrefix(final String value) {
         nonePrefix = value;
         updateStatus();