chore: integrate NPM publish with CircleCI

[jinwoo]

Also run docker as non-root user.

[codecov-io]

Codecov Report

Merging #130 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #130   +/-   ##
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  Coverage   96.64%   96.64%           
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  Files          10       10           
  Lines         328      328           
  Branches       19       19           
=======================================
  Hits          317      317           
  Misses         11       11

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[jinwoo]

We need one more thing to enable NPM auto-publish. The NPM_TOKEN env var must be set in the CircleCI config. @ofrobots Can you please do that? I don't think I can.

[ofrobots]

Done.

…

On Fri, Mar 2, 2018 at 5:08 PM Jinwoo Lee ***@***.***> wrote: We need one more thing to enable NPM auto-publish. The NPM_TOKEN env var must be set in the CircleCI config. @ofrobots <https://github.com/ofrobots> Can you please do that? I don't think I can. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#130 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAE0qTGGw_dIDyTpkmkEMe_jZqU5Q6ZPks5tae0VgaJpZM4Sao87> .

-- Ali