reduce list of projects for admin resolves #1187

[MontrealSergiy]

this reduces the project lists for admin, which became unwieldy.

@natacha-beck the feature complicates task of setting the prototype tools to a private group, as well as creation of private data providers. Please confirm that you ok with it or need some workaround (e.g. adding admin workgroups, perhaps prioriterization instead of removal)

[prioux]

Also rebase this one.

[MontrealSergiy]

done

[natacha-beck]

@MontrealSergiy this PR will close issue number #1187 no ? If it is the case can you update the Development session on this page.

[MontrealSergiy]

@MontrealSergiy this PR will close issue number #1187 no ? If it is the case can you update the Development session on this page.

done

[prioux]

The new helper group_select does not behave properly.

If a programmer invokes it in a page with an explicit list of groups passed in options, it is not supposed to replace that list with its own list. It's supposed to respect it.

The behavior we want is for the de list of groups to be reduced ONLY when the default list is generated internally.

[MontrealSergiy]

in my opinion it is directly related. The method got updated while the 'pre-optimization' have not.

But if you are still in doubt I can factor out bug fix into separate issue, as several different solutions are possible. Removal of short return is simple fix but not necessarily the best