Move toward ob-jupyter

[gregsexton]

We currently have :kernel support but this doesn't work across all features.

• Seems you can only have one REPL and it's called Python. This then gets used to do autocomplete in python buffers. If it's not actually a python repl this causes all manner of failure.
• Opening a src block opens it in python mode
• You have to use the session arg to mix code. [I mentioned this in the README.]
• Variables and tables don't work generically. Not sure how to fix this.
• Rename to ob-jupyter

[stardiviner]

I still think this extension should rename to ob-jupyter.

[gregsexton]

Renaming is a part of this task. Are you agreeing with the decision?

[stardiviner]

I agree.

[EmperorDali]

I think renaming is the way to go as well.

I'll start reading up a bit on jupyter's architecture so that hopefully I can help a bit with the work of getting ob-jupyter going.