Migrate data from filesystem to postgres issue #81

[nelsonic]

• Upgrade to Phoenix 1.5.3 warning: :simple_one_for_one strategy is deprecated, please use DynamicSupervisor instead #103
• Migrate data from Node.js MVP (filesystem) to PostgreSQL Migrate data from Filesystem to Postgres #81

[codecov]

Codecov Report

Merging #82 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master       #82   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           11        11           
  Lines           62        62           
=========================================
  Hits            62        62           

Impacted Files	Coverage Δ
lib/hits/application.ex	100.00% <ø> (ø)

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[nelsonic]

Build fails because no Postgres: https://travis-ci.org/github/dwyl/hits/builds/709830080#L572

Fairly obvs. Adding now.