Feature/travis setup

[mfrasco]

setup travis and codecov

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@41b456e). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master       #3   +/-   ##
=========================================
  Coverage          ?   98.76%           
=========================================
  Files             ?        1           
  Lines             ?       81           
  Branches          ?        0           
=========================================
  Hits              ?       80           
  Misses            ?        1           
  Partials          ?        0

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