Docker related updates#127

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jasworks wants to merge 8 commits intoschn4ck:masterfrom

jasworks:master

Commits on Feb 12, 2021

Changed to a more recent docker base image lts-buster.
jasworks
committed

Commits on Feb 21, 2021

Added a sample CSS file
jasworks
committed

Commits on Feb 24, 2021

Added a dockerfile to build with all supported plugins installed
Ubuntu
committed

Commits on Mar 2, 2021

Setup some scripts for multi-arch docker rollout
jasworks
committed