Move user-list's data fetching and actions to a separate file

bigbluebutton-html5/app/.jshintrc

...t/imports/react/components/UserList/UserListContainer.jsx

...ient/imports/react/components/UserList/UserListService.js

bigbluebutton-html5/app/client/stylesheets/users.less

...uebutton-html5/app/client/views/react-components/icon.jsx

...utton-html5/app/client/views/react-components/tooltip.jsx

...ton-html5/app/client/views/react-components/user-list.jsx

...app/client/views/react-components/user-list/user-item.jsx

...react-components/user-list/user-item/user-action-list.jsx

...user-list/user-item/user-action-list/user-action-kick.jsx

.../react-components/user-list/user-item/user-media-list.jsx

...er-list/user-item/user-media-list/user-media-item-mic.jsx

...s/user-list/user-item/user-media-list/user-media-item.jsx

.../views/react-components/user-list/user-item/user-name.jsx

...iews/react-components/user-list/user-item/user-status.jsx