Canonical moved/deleted some cloud-based images

[jruariveiro]

Sorry for trying to use these amateur images, but seems canonical decided to move/delete some of them:

for i in ubuntu1610 ubuntu1704 ubuntu1710 ubuntu1810; do kcli download $i; done

Causing kcli to fail. Shame on you, shuttleworth

Tested on: Fedora release 30 (Thirty) Kcli version 14.13

[karmab]

addressed in https://github.com/karmab/kcli/commit/7354459e9e9cc3e2685dacdf8cc63d7a854e3b9c and adding ubuntu 1904

[jruariveiro]

Thanks