setintersection

[Jorispilot]

Add setintersection for Nemo.arb.

It just calls arb_intersection from C library.

[wbhart]

Thanks, but could you possibly rebase your branch on master and resubmit the pull request.

This can be done as follows (it assumes you have it set up to pull from Nemocas/Nemo.jl master, but to push to your own repository):

git checkout master
git pull
git checkout arb_intersection
git rebase master
git push -f --all

The -f will force it to overwrite the old arb_intersection branch in your GitHub repository with the rebased one (and it will force a push of all other branches too - adjust if you don't want this).