Progressbar: Move progressbar into widgets folder

Ref #13885

demos/bootstrap.js

@@ -32,7 +32,8 @@ var widgets = [
 	"dialog",
 	"draggable",
 	"droppable",
-	"menu"
+	"menu",
+	"progressbar"
 ];
 
 function getPath( module ) {

tests/unit/progressbar/common.js

@@ -1,6 +1,6 @@
 define( [
 	"lib/common",
-	"ui/progressbar"
+	"ui/widgets/progressbar"
 ], function( common ) {
 
 common.testWidget( "progressbar", {

tests/unit/progressbar/core.js

@@ -1,6 +1,6 @@
 define( [
 	"jquery",
-	"ui/progressbar"
+	"ui/widgets/progressbar"
 ], function( $ ) {
 
 module( "progressbar: core" );

tests/unit/progressbar/events.js

@@ -1,6 +1,6 @@
 define( [
 	"jquery",
-	"ui/progressbar"
+	"ui/widgets/progressbar"
 ], function( $ ) {
 
 module( "progressbar: events" );

tests/unit/progressbar/methods.js

@@ -1,6 +1,6 @@
 define( [
 	"jquery",
-	"ui/progressbar"
+	"ui/widgets/progressbar"
 ], function( $ ) {
 
 module( "progressbar: methods" );

tests/unit/progressbar/options.js

@@ -1,6 +1,6 @@
 define( [
 	"jquery",
-	"ui/progressbar"
+	"ui/widgets/progressbar"
 ], function( $ ) {
 
 module( "progressbar: options" );

ui/widgets/progressbar.js

@@ -22,8 +22,8 @@
 		// AMD. Register as an anonymous module.
 		define( [
 			"jquery",
-			"./version",
-			"./widget"
+			"../version",
+			"../widget"
 		], factory );
 	} else {