Fixed some memory leaks.

src/commands/cmd_configure_screen.cpp

@@ -237,6 +237,7 @@ static bool alert_msg_proc(JWidget widget, JMessage msg)
 
       usprintf(buf, "In %d seconds the screen will be restored.", seconds_to_accept);
       jwidget_set_text((JWidget)labels->end->next->next->data, buf);
+      jlist_free(labels);
 
       if (seconds_to_accept == 0) {
 	jmanager_stop_timer(timer_to_accept);

src/console/console.cpp

@@ -133,6 +133,8 @@ void Console::printf(const char *format, ...)
       jwidget_set_rect(wid_console, rect);
       jwindow_center(wid_console);
       jwidget_dirty(wid_console);
+
+      jrect_free(rect);
     }
 
     text = jwidget_get_text(wid_textbox);

src/core/drop_files.cpp

@@ -52,9 +52,11 @@ void install_drop_files()
 void uninstall_drop_files()
 {
   unsubclass_hwnd();
-
+  
   jmutex_free(dropped_files_mutex);
   dropped_files_mutex = NULL;
+
+  dropped_files.clear();
 }
 
 void check_for_dropped_files()

src/jinete/jcombobox.cpp

@@ -541,6 +541,7 @@ static void combobox_close_window(JWidget widget)
   ComboBox* combobox = reinterpret_cast<ComboBox*>(jwidget_get_data(widget, JI_COMBOBOX));
   if (combobox->window) {
     jwindow_close(combobox->window, widget);
+    jwidget_free(combobox->window);
     combobox->window = NULL;
 
     jmanager_remove_msg_filter(JM_BUTTONPRESSED, widget);