Fixes UV embed url. (#882)

Two problems here, a commit was missing in our rebase of master:

sul-dlss-deprecated/universalviewer@3698a23

And we updated the path it was being served from adding the md5 hash

public/uv-3-ae93b63376b4ac7abc51c04c9d5103ea

@@ -0,0 +1 @@
+./uv-3

public/uv-3/.md5

@@ -1 +1 @@
-61ff8f0ca0c7ceda859d0e00861a5150
+ae93b63376b4ac7abc51c04c9d5103ea

public/uv-3/uv.js

@@ -26653,10 +26653,8 @@ define('extensions/uv-seadragon-extension/Extension',["require", "exports", "../
             return infoUri;
         };
         Extension.prototype.getEmbedScript = function (template, width, height, zoom, rotation) {
-            var config = this.data.config.uri || '';
-            var locales = this.getSerializedLocales();
             var appUri = this.getAppUri();
-            var iframeSrc = appUri + "#?manifest=" + this.helper.iiifResourceUri + "&c=" + this.helper.collectionIndex + "&m=" + this.helper.manifestIndex + "&s=" + this.helper.sequenceIndex + "&cv=" + this.helper.canvasIndex + "&config=" + config + "&locales=" + locales + "&xywh=" + zoom + "&r=" + rotation;
+            var iframeSrc = appUri.replace(/\/uv-3.*\/uv.html/, '/iframe') + "?url=" + this.helper.iiifResourceUri.replace('/iiif/manifest', '');
             var script = Utils.Strings.format(template, iframeSrc, width.toString(), height.toString());
             return script;
         };