fix: decouple mu-jquery-loom

Previously we asumed you'd be using `mu-jquery-loom` for hooking your widgets and elements up but that's not always true so we changed `walk` to take a method that returns the `$element` we're attaching to the dom, nothing more.

BREAKING CHANGE: `walk` signature change.

examples/book.js

@@ -11,11 +11,8 @@
     }));
   }
 })(["mu-jquery-widget/widget", "../walk"], function (widget, walk) {
-  function conf(json) {
-    return {
-      "element": "<" + json["@component"] + ">",
-      "widget": "mu-jquery-widget-cyoa/widget"
-    };
+  function create(json) {
+    return this.$("<" + json["@component"] + ">", { "mu-widget": "mu-jquery-widget-cyoa/widget" });
   }
 
   return widget.extend({
@@ -27,7 +24,7 @@
           throw new Error("data.json [" + textStatus + "] " + errorThrown);
         })
         .then(function (json) {
-          return me.$element.append(walk.call(me, me.json = json, conf)).weave();
+          return me.$element.append(walk.call(me, me.json = json, create)).weave();
         });
     }
   })

walk.js

@@ -9,21 +9,21 @@
     root["mu-jquery-widget-cyoa/walk"] = factory.apply(root, modules);
   }
 })([], function () {
-  return function walk(json, conf) {
+  return function walk(json, create) {
     var me = this;
     var $ = me.$;
     var parent = function () {
       return json;
     };
     var $children = $.map(json["@children"] || false, function (child) {
       child.parent = parent;
-      return walk.call(me, child, conf);
+      return walk.call(me, child, create);
     });
-    var cfg = conf.call(me, json);
+    var $element = create.call(me, json);
 
-    return cfg
-      ? $(cfg.element, { "mu-widget": cfg.widget })
-        .data("muJqueryWidgetCyoa", json)
+    return $element
+      ? $element
+        .data("mu-jquery-widget-cyoa", json)
         .append($children)
       : $children;
   }

widget.js

@@ -13,7 +13,7 @@
 })(["mu-jquery-widget/widget"], function (widget) {
   return widget.extend(function ($element, ns) {
     var me = this;
-    var json = me.json = $element.data("muJqueryWidgetCyoa");
+    var json = me.json = $element.data("mu-jquery-widget-cyoa");
 
     json.widget = function () {
       return me;