Update gitignore
Update gitignore

michaelkirk/SocketRocket,michaelkirk/SocketRocket,erikprice/SocketRocket,erikprice/SocketRocket,erikprice/SocketRocket,michaelkirk/SocketRocket,michaelkirk/SocketRocket,erikprice/SocketRocket,michaelkirk/SocketRocket,erikprice/SocketRocket,erikprice/SocketRocket,michaelkirk/SocketRocket,michaelkirk/SocketRocket,erikprice/SocketRocket