Recent changes to 47: Inform that files are identical

Recent changes to 47: Inform that files are identicalhttps://sourceforge.net/p/diffuse/feature-requests/47/2015-03-25T13:46:19.768000ZRecent changes to 47: Inform that files are identicalInform that files are identical2015-03-25T13:46:19.768000Z2015-03-25T13:46:19.768000Ztemarezhttps://sourceforge.net/u/temarez/https://sourceforge.net40577674692917ee0307f01200a7870462b88554

<div class="markdown_content"><p>It would be good to inform user in case if files are identical (maybe display a message box on startup).</p></div>