Hack fix for searchview filter leaking to the other thread pane.

Until this get properly done, just close the view as soon as the panel slides.
It appears SearchView + SlidingPaneLayout is a bit troublesome.

Clover/app/src/main/java/org/floens/chan/ui/activity/BoardActivity.java

@@ -231,6 +231,13 @@ public class BoardActivity extends BaseActivity implements AdapterView.OnItemSel
         }
     }
 
+    @Override
+    public void onPanelSlide(View view, float offset) {
+        super.onPanelSlide(view, offset);
+
+        searchMenuItem.collapseActionView();
+    }
+
     @Override
     public void onConfigurationChanged(Configuration newConfig) {
         super.onConfigurationChanged(newConfig);