Import importnb to this project

[yuvipanda]

importnb is a newer and better version of this package, that does the same things - but is more maintained.

I spoke to @tonyfast and there is interest in making this happen. It will help adoption, and keep this project moving forward.

Things to do:

• Import contents of that git repo to here, preserving all histories
• Add maintainers of importnb to this repo
• Add maintainers of importnb to pypi
• Make an announcement

[yuvipanda]

/cc @Carreau. what do you think?

[tonyfast]

I'm down if @Carreau agrees.

[Carreau]

Tony is the best*. I trust him completely, and I'm always down to decrease the number of way of doing things.

*Yuvi is also the best... I'm thorn now...

[yuvipanda]

yay!

One thing to figure out - there are users of this package now (https://github.com/ipython/ipynb/network/dependents). I guess we will have to bump the major version and break all the unpinned users? Is there something else we can do?

[Carreau]

i'm fine bumping the major version.

We can also look at version epoch ; but it's so rare that we have more chances to find a broken thing in it.