DNF upgrade test cases

[Kamil Paral]

> Hey folks! Just a heads-up: I've created some DNF system upgrade test
> cases. As of right now the fedup ones are still in the Installation
> results page, but I'll probably switch that up before we cut Beta TC2.
> 
> The fedup test cases still exist (the template page locations were
> twiddled a bit behind the scenes, but the top-level test cases should
> look exactly the same as before).
> 
> You can find the dnf test cases here:
> 
> https://fedoraproject.org/wiki/Category:Package_dnf-plugin-system-upgrade_test_cases
> 
> Right now the packages aren't actually in updates-testing, but they're
> built in Koji, you can install from there if you want to test right
> away. I did do a quick F22-F23 test and it didn't seem to work, I'll
> check in with wwoods about that.
> 
> I also tweaked https://fedoraproject.org/wiki/Upgrading and created
> https://fedoraproject.org/wiki/DNF_system_upgrade .

Thanks a lot, Adam.