thrimbletrimmer: Have a download link instead of a iframe

The iframe doesn't always work, this is more reliable.

thrimbletrimmer/index.html

@@ -109,6 +109,7 @@
 				<option value="fast">Fast (may have artifacts a few seconds in from start and end)</option>
 				<option value="mpegts">MPEG-TS (slow, consumes server resources)</option>
 			</select>
+			<a id="DownloadLink" href="" style="display:none">Right click here and Save Link As to Download</a>
         </div>
         <div id="ManualLinkPane" style="display:none">
             <input id="ManualLink" /> <input type="button" id="ManualButton" onclick="thrimbletrimmerManualLink()" value="Set Link" />
@@ -123,7 +124,6 @@
             </ul>
         </div>
     </div>
-    <iframe id="outputFile" style="display:none;"></iframe>
 
     <script src="/thrimbletrimmer/scripts/playerSetup.js"></script>
     <script src="/thrimbletrimmer/scripts/keyboardShortcuts.js"></script>

thrimbletrimmer/scripts/IO.js

@@ -300,7 +300,8 @@ thrimbletrimmerDownload = function(isEditor) {
             allow_holes: (isEditor) ? String(document.getElementById('AllowHoles').checked) : "true",
         });
     console.log(targetURL);
-    document.getElementById('outputFile').src = targetURL;
+    document.getElementById('DownloadLink').href = targetURL;
+	document.getElementById('DownloadLink').style.display = "";
 };
 
 thrimbletrimmerManualLink = function() {