Copr GPG keys

[Miroslav Suchý]

Hi,
I just released new version of distribution-gpg-keys package:
  https://bodhi.fedoraproject.org/updates/FEDORA-2016-1a7ed2ffe8
It now includes GPG keys of all Copr projects. Thanks to clime for
writing the script which retrieve all those keys.

I plan to upgrade those data regularly. Although I'm still not sure what
will be the definition of 'regularly' yet. Probably every month.

Mirek