packer region tweak

Closed Jake Buchholz Göktürk requested to merge github/fork/tomalok/master into master

Created by: tomalok

A recent packer change (some time before 1.3.3) necessitates the setting of the build region, if packer is run outside of AWS.

Also, bumping release to be in sync with the recently released alpine 3.8.2.

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