Integrate with Jupyter kernels to allow use with other languages (Python etc)

[caesar]

It would be really awesome to be able to use Mancy as a replacement for the Jupyter QTConsole – in other words, to be able to use it with Jupyter kernels such as the IPython kernel and thus be able to use if for languages other than Javascript.

Is this possible, or would it be too major a rewrite...? (I'm not familiar with the current architecture of Mancy.)