Replace use of scripts with entry_points

[bollwyvl]

References

• fixes Replace scripts with console_scripts #235

Changes

• replaces use of scripts with entry_points: console_scripts
  • this generally generates better/more secure scripts that are more predictable for downstream packagers e.g. debian, conda-forge
  • also more cross-platform-compatible, which is a story for another day...

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[consideRatio]

This looks good to me, but I'm not so confident on this technically etc so I'll ping someone else for review as well.

@minrk and @rkdarst I saw that this project isn't getting so much maintainer attention and hoped to ensure a few simpler PRs at least got some attention. As I'm not an active user myself so I only dare merge things that seems very clear to not break something, perhaps you could have a look at this small PR?

[bollwyvl]

Here's the corresponding PR on jupyterhub itself:

jupyterhub/jupyterhub#2313

[consideRatio]

Nice that makes me quite confident this is good to go, I'll go for a merge if this grows stale.

Btw, test failures are unrelated and fixed by #241.

[consideRatio]

Given that this pattern was demonstrated sensible in jupyterhub without other changes needed and the PR seemed to go stale I'll go for a merge on this now that also all tests has passed by fixing it in other PRs.