merge package template from arlac77/npm-package-template

[arlac77]

package.json

• chore(devDependencies): update rollup@^0.53.4 from template

[codecov-io]

Codecov Report

Merging #34 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #34   +/-   ##
=======================================
  Coverage   57.97%   57.97%           
=======================================
  Files           2        2           
  Lines          69       69           
=======================================
  Hits           40       40           
  Misses         29       29

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[coveralls]

Coverage remained the same at 57.143% when pulling 5795e27 on template-sync-1 into 20a29f9 on master.