Update yaml files for 5.x compatible nbextensions

[jfbercher]

I have gone though the nbextensions this evening and marked those which seems working for me. I haven't tested everything but at least the basic functionality is present in these extensions. Most of the nbextensions work.
I have a doubt concerning split cells notebook, scrolldown and haven't tested skill syntax.

[jcb91]

Thanks, good work @jfbercher.

Skill syntax is pretty much just a codemirror mode, which means it relies little on notebook & should be fine on 5.x. I think we can update it & wait for bug reports 😉. What were your doubts about split cell & scrolldown?

[jfbercher]

if I remember well, split cell was splitting horizontally the cell with code on the left and output on the right. This is no more the case: code + output are on the 50% left. You are the author @jcb91 ?
For scolldown, it seems that it doesn't scroll at all @kukanya ?

[jcb91]

This is no more the case: code + output are on the 50% left. You are the author @jcb91 ?

No, I'm not the original author, and haven't used it, so I'm not sure, but from memory I think the idea is that a split cell should be 50% left, so that the next cell can be 50% right, and the two end up side by side. Maybe I've got that confused though...

[jfbercher]

No, you are right. It is what it does. So it works.
I think that I have seen the other extension (split input/output) elsewhere else. I will mark skill and splitcell as 5.x compatible.

[jcb91]

thanks for this @jfbercher