chore: run tests through npm test
docs: add Travis CI badge
chore: ignore unneeded files
Merge pull request #8 from pkozlowski-opensource/npm_tests

chore: run tests through npm test
Merge pull request #9 from pkozlowski-opensource/travis_badge

docs: add Travis CI badge
Merge pull request #10 from pkozlowski-opensource/ignore

chore: ignore unneeded files