Very late Fedora 30 change considered: Mono 5

[Miro Hrončok]

There is a discussion in a FESCo ticket whether we should update to Mono 5 in 
Fedora 30. This is absurdly late considering out change process, but the 
argument is that it cannot be any worse than it currently is.

https://fedoraproject.org/wiki/Changes/Mono_5
https://pagure.io/fesco/issue/2105

Please participate in the discussion in the ticket if you have relevant 
arguments for either doing this or not.

Thanks,