Small modification on History storing...
Small modification on History storing...

- Store History entry only if not duplicate with the one before

jasonkwh/maccha-browser-project,jasonkwh/quaza-browser-project,jasonkwh/quaza-browser-project,jasonkwh/quaza-browser-project,jasonkwh/quaza-browser-project,jasonkwh/maccha-browser-project,jasonkwh/quaza-browser-project,jasonkwh/maccha-browser-project,jasonkwh/maccha-browser-project,jasonkwh/maccha-browser-project