Don't load/unload plugins in the EDT

Fixes CLIENT-226

Change-Id: I23a058df642f2738e2878491e72b679d04554257
Reviewed-on: http://gerrit.dmdirc.com/1916
Reviewed-by: Chris Smith <chris@dmdirc.com>
Automatic-Compile: DMDirc Local Commits <dmdirc@googlemail.com>

src/com/dmdirc/addons/ui_swing/components/addonpanel/AddonToggle.java

@@ -100,22 +100,29 @@ public class AddonToggle {
      * Applies the changes to the PluginInfo, if any.
      */
     public void apply() {
-        if (pi != null && toggled) {
-            if (pi.isLoaded()) {
-                pi.unloadPlugin();
-            } else {
-                pi.loadPlugin();
+        new Thread("Addon-Load-Unload") {
+
+            /** {@inheritDoc} */
+            @Override
+            public void run() {
+                if (pi != null && toggled) {
+                    if (pi.isLoaded()) {
+                        pi.unloadPlugin();
+                    } else {
+                        pi.loadPlugin();
+                    }
+                    PluginManager.getPluginManager().updateAutoLoad(pi);
+                }
+                if (theme != null && toggled) {
+                    if (theme.isEnabled()) {
+                        theme.applyTheme();
+                    } else {
+                        theme.removeTheme();
+                    }
+                    ThemeManager.updateAutoLoad(theme);
+                }
             }
-            PluginManager.getPluginManager().updateAutoLoad(pi);
-        }
-        if (theme != null && toggled) {
-            if (theme.isEnabled()) {
-                theme.applyTheme();
-            } else {
-                theme.removeTheme();
-            }
-            ThemeManager.updateAutoLoad(theme);
-        }
+        }.start();
     }
 
     /**