Ability for maintainers to update own ports

[Sergey Matveychuk]

Mark Linimon wrote:

> In the meantime, it really comes down to just getting more
> volunteers involved within the existing framework, IMHO.

OK, where can we get they? :)

I think a new committer should get some obligations (say, to care about 
an other's/orphaned ports).

May be there is a reason to designate a resposible person for each ports 
category to move things faster?

Just thoughts.

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Sem.