Upgrade Go Version And Dockerized#76

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tzinckgraf wants to merge 4 commits intoOpenTreeMap:developfrom

sustainablejc:develop

Commits on Jul 6, 2020

Add Dockerfile
tzinckgraf
committed

Commits on Dec 24, 2020

develop - fixed the Docker commands as godep is godeprecated
tzinckgraf
committed

Commits on Mar 1, 2021