adding a compatibility.js as a single source to define all fallback function declarations

core/js/compatibility.js

+
+//https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Function/bind
+if (!Function.prototype.bind) {
+	Function.prototype.bind = function (oThis) {
+		if (typeof this !== "function") {
+			// closest thing possible to the ECMAScript 5 internal IsCallable function
+			throw new TypeError("Function.prototype.bind - what is trying to be bound is not callable");
+		}
+
+		var aArgs = Array.prototype.slice.call(arguments, 1),
+			fToBind = this,
+			fNOP = function () {},
+			fBound = function () {
+				return fToBind.apply(this instanceof fNOP && oThis
+					? this
+					: oThis,
+					aArgs.concat(Array.prototype.slice.call(arguments)));
+			};
+
+		fNOP.prototype = this.prototype;
+		fBound.prototype = new fNOP();
+
+		return fBound;
+	};
+}

lib/base.php

@@ -278,6 +278,7 @@ class OC {
 		OC_Util::addScript("jquery-showpassword");
 		OC_Util::addScript("jquery.infieldlabel");
 		OC_Util::addScript("jquery-tipsy");
+		OC_Util::addScript("compatibility");
 		OC_Util::addScript("oc-dialogs");
 		OC_Util::addScript("js");
 		OC_Util::addScript("eventsource");