Content and fixes 2017-10-05 (#9165)

* fix(market): display classless equipment

* fix(challenges): more missing Markdown

* feat(content): backgrounds and Enchanted Armoire 2017-10

* chore(sprites): compile

website/common/script/libs/shops.js

@@ -165,6 +165,23 @@ shops.getMarketGearCategories = function getMarketGear (user, language) {
     categories.push(category);
   }
 
+  let nonClassCategory = {
+    identifier: 'none',
+    text: i18n.t('none', language),
+  };
+
+  let falseGear = filter(content.gear.flat, (gear) => {
+    return user.items.gear.owned[gear.key] === false && gear.klass !== user.stats.class;
+  });
+
+  nonClassCategory.items = map(falseGear, (e) => {
+    let newItem = getItemInfo(user, 'marketGear', e);
+
+    return newItem;
+  });
+
+  categories.push(nonClassCategory);
+
   return categories;
 };