Fixed event prefix in all plugins that don't use the default prefix.

Fixes #5134 - Events not being triggered for drag and drop.

ui/jquery.ui.draggable.js

@@ -15,6 +15,7 @@
 (function($) {
 
 $.widget("ui.draggable", $.ui.mouse, {
+	widgetEventPrefix: "drag",
 	options: {
 		addClasses: true,
 		appendTo: "parent",
@@ -467,8 +468,7 @@ $.widget("ui.draggable", $.ui.mouse, {
 });
 
 $.extend($.ui.draggable, {
-	version: "@VERSION",
-	eventPrefix: "drag"
+	version: "@VERSION"
 });
 
 $.ui.plugin.add("draggable", "connectToSortable", {

ui/jquery.ui.droppable.js

@@ -16,6 +16,7 @@
 (function($) {
 
 $.widget("ui.droppable", {
+	widgetEventPrefix: "drop",
 	options: {
 		accept: '*',
 		activeClass: false,
@@ -146,8 +147,7 @@ $.widget("ui.droppable", {
 });
 
 $.extend($.ui.droppable, {
-	version: "@VERSION",
-	eventPrefix: 'drop'
+	version: "@VERSION"
 });
 
 $.ui.intersect = function(draggable, droppable, toleranceMode) {

ui/jquery.ui.resizable.js

@@ -15,6 +15,7 @@
 (function($) {
 
 $.widget("ui.resizable", $.ui.mouse, {
+	widgetEventPrefix: "resize",
 	options: {
 		alsoResize: false,
 		animate: false,
@@ -518,8 +519,7 @@ $.widget("ui.resizable", $.ui.mouse, {
 });
 
 $.extend($.ui.resizable, {
-	version: "@VERSION",
-	eventPrefix: "resize"
+	version: "@VERSION"
 });
 
 /*

ui/jquery.ui.slider.js

@@ -20,6 +20,7 @@
 var numPages = 5;
 
 $.widget("ui.slider", $.ui.mouse, {
+	widgetEventPrefix: "slide"
 	options: {
 		animate: false,
 		distance: 0,
@@ -607,8 +608,7 @@ $.widget("ui.slider", $.ui.mouse, {
 });
 
 $.extend($.ui.slider, {
-	version: "@VERSION",
-	eventPrefix: "slide"
+	version: "@VERSION"
 });
 
 })(jQuery);

ui/jquery.ui.sortable.js

@@ -15,6 +15,7 @@
 (function($) {
 
 $.widget("ui.sortable", $.ui.mouse, {
+	widgetEventPrefix: "sort",
 	options: {
 		appendTo: "parent",
 		axis: false,
@@ -1045,8 +1046,7 @@ $.widget("ui.sortable", $.ui.mouse, {
 });
 
 $.extend($.ui.sortable, {
-	version: "@VERSION",
-	eventPrefix: "sort"
+	version: "@VERSION"
 });
 
 })(jQuery);