Upgrade note for kscreenlocker to Plasma 5.10

[Harald Sitter]

On Wed, Mar 8, 2017 at 7:50 PM, Martin Gräßlin <mgraesslin at kde.org> wrote:
> There are two solutions to the problem which might need a small change for
> your packaging:
> 1) Perform offline updates for the upgrade (my preferred solution)

FWIW, discover doesn't actually support these so that's not actually a
solution but a problem on top of the problem :P

HS