v0.12.3

• Chore: remove greenkeeper-lockfile from .travis.yml (#132)
• Chore(package): update rollup-plugin-node-resolve to version 4.0.0 (#133)
• Chore(package): update file-type to version 10.7.0 (#135)
• Chore(package): update rollup to version 1.0.0 (#137)
• Chore(package): update eslint to version 5.12.1 (#138)
• Chore(package): update @egy186/eslint-config to version 0.35.1 (#136)
• Docs: update license year to 2019 (#139)