Ipykernel

- Fix compatibility issue with qt eventloop and pyzmq 17
[307](https://github.com/ipython/ipykernel/pull/307).

- set zmq.ROUTER_HANDOVER socket option when available to workaround
libzmq reconnect bug [300](https://github.com/ipython/ipykernel/pull/300).
- Fix sdists including absolute paths for kernelspec files, which
prevented installation from sdist on Windows
[306](https://github.com/ipython/ipykernel/pull/306).

- Cleanly shutdown integrated event loops when shutting down the
kernel. [290](https://github.com/ipython/ipykernel/pull/290)
- `%gui qt` now uses Qt 5 by default rather than Qt 4, following a
similar change in terminal IPython. [293](https://github.com/ipython/ipykernel/pull/293)
- Fix event loop integration for `asyncio` when run with Tornado 5, which uses asyncio where
available. [296](https://github.com/ipython/ipykernel/pull/296)

- Add event loop integration for `asyncio`.
- Use the new IPython completer API.
- Add support for displaying GIF images (mimetype `image/gif`).
- Allow the kernel to be interrupted without killing the Qt console.
- Fix `is_complete` response with cell magics.
- Clean up encoding of bytes objects.
- Clean up help links to use `https` and improve display titles.
- Clean up ioloop handling in preparation for tornado 5.