Update URL scheme to include /item/*

* Update the router to understand /item/:name routes in addition to
  v1.0-style parameterized routes
* Add support for updating the current URL based upon the item being
  viewed
* Change LandingPage* to ItemPage*

src/scripts/models/item_page.coffee

@@ -0,0 +1,19 @@
+###
+# Crafting Guide - item_page.coffee
+#
+# Copyright (c) 2014 by Redwood Labs
+# All rights reserved.
+###
+
+BaseModel     = require './base_model'
+CraftingTable = require './crafting_table'
+RecipeCatalog = require './recipe_catalog'
+
+########################################################################################################################
+
+module.exports = class ItemPage extends BaseModel
+
+    constructor: (attributes={}, options={})->
+        attributes.catalog ?= new RecipeCatalog
+        attributes.table ?= new CraftingTable catalog:attributes.catalog
+        super attributes, options