Common reorg (#8025)

* Re-organize common folder

* fix: Correct paths in tests

* fix: move new content to proper folder

* chore: Move audio folder to assets

* Move sprites to sprites assets directory

* Move css sprites to assets directory

* Split out readmes for common code and sprites

* Move images to assets directory

* Move destinatin of shared browserified file

* remove unused file

* move compiled js to client-old

* Fix karma tests

* fix: Correct paths for sprites

website/common/script/fns/resetGear.js

@@ -0,0 +1,25 @@
+import _ from 'lodash';
+import content from '../content/index';
+
+module.exports = function resetGear (user) {
+  let gear = user.items.gear;
+
+  _.each(['equipped', 'costume'], function resetUserGear (type) {
+    gear[type] = {};
+    gear[type].armor = 'armor_base_0';
+    gear[type].weapon = 'weapon_warrior_0';
+    gear[type].head = 'head_base_0';
+    gear[type].shield = 'shield_base_0';
+  });
+
+  // Gear.owned is a Mongo object so the _.each function iterates over hidden properties.
+  // The content.gear.flat[k] check should prevent this causing an error
+  _.each(gear.owned, function resetOwnedGear (v, k) {
+    if (gear.owned[k] && content.gear.flat[k] && content.gear.flat[k].value) {
+      gear.owned[k] = false;
+    }
+  });
+
+  gear.owned.weapon_warrior_0 = true; // eslint-disable-line camelcase
+  user.preferences.costume = false;
+};