Added usability patch for trash icon

rtgui/filebrowser.h

@@ -45,6 +45,8 @@ struct FileBrowserIdleHelper {
 };
 
 class FileBrowser  : public ThumbBrowserBase, public LWButtonListener {  
+
+    typedef sigc::signal<void> type_trash_changed;
 
   protected:
 
@@ -75,6 +77,8 @@ class FileBrowser  : public ThumbBrowserBase, public LWButtonListener {
     void fromTrashRequested (std::vector<FileBrowserEntry*> tbe);
     void rankingRequested   (std::vector<FileBrowserEntry*> tbe, int rank);
     void notifySelectionListener ();
+    
+    type_trash_changed m_trash_changed;
     
   public:
    
@@ -110,7 +114,9 @@ class FileBrowser  : public ThumbBrowserBase, public LWButtonListener {
     void thumbRearrangementNeeded ();
     void _thumbRearrangementNeeded ();
     
-    void selectionChanged ();
+    void selectionChanged ();
+    
+    type_trash_changed trash_changed();
 };
 
 #endif