Create a SharePoint 2013 chat solution / app

Build a SharePoint 2013 solution template with realtime builtin messaging functionality. - Asynchronous updates (no page refreshes) - Fast applications - Run in context of the site - Use the SharePoint users that exist within the host site - Create similar functionality to the WhatsApp app i.e. - New Group: This will prompt for "Group Subject" and group logo. Click next to add Participants - Status: Add ability to set your status: Available, Busy, In a meeting, Away - Chats: List all Chats you are involved in - Permission: All users can create groups and start chatting - Users cannot see conversations unless invited - Notifications: If you are sent a message there should be some form of notification - Design: The look and feel of the solution / app should be clean, flat and minimalist - Should be new, bespoke code - I expect a high standard of JavaScript and jQuery Prototype and demonstrate that you understand this requirement and I will shortlist you. Good luck!