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/ops/sortTask.js

@@ -0,0 +1,49 @@
+import i18n from '../i18n';
+import preenTodos from '../libs/preenTodos';
+import {
+  NotFound,
+  BadRequest,
+} from '../libs/errors';
+import _ from 'lodash';
+
+// TODO used only in client, move there?
+
+module.exports = function sortTask (user, req = {}) {
+  let id = _.get(req, 'params.id');
+  let to = _.get(req, 'query.to');
+  let fromParam = _.get(req, 'query.from');
+  let taskType = _.get(req, 'params.taskType');
+
+  let index = _.findIndex(user[`${taskType}s`], function findById (task) {
+    return task._id === id;
+  });
+
+  if (index === -1) {
+    throw new NotFound(i18n.t('messageTaskNotFound', req.language));
+  }
+  if (to == null && fromParam == null) { // eslint-disable-line eqeqeq
+    throw new BadRequest('?to=__&from=__ are required');
+  }
+
+  let tasks = user[`${taskType}s`];
+
+  if (taskType === 'todo') {
+    let preenedTasks = preenTodos(tasks);
+
+    if (to !== -1) {
+      to = tasks.indexOf(preenedTasks[to]);
+    }
+
+    fromParam = tasks.indexOf(preenedTasks[fromParam]);
+  }
+
+  let movedTask = tasks.splice(fromParam, 1)[0];
+
+  if (to === -1) {
+    tasks.push(movedTask);
+  } else {
+    tasks.splice(to, 0, movedTask);
+  }
+
+  return tasks;
+};