merge package template from arlac77/npm-package-template

[arlac77]

LICENSE

• chore(license): add current year 2018

[codecov-io]

Codecov Report

Merging #350 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #350   +/-   ##
=======================================
  Coverage   69.45%   69.45%           
=======================================
  Files           4        4           
  Lines         203      203           
=======================================
  Hits          141      141           
  Misses         62       62

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[coveralls]

Coverage remained the same at 64.49% when pulling 38ce906 on template-sync-1 into 6f5df0f on master.