v4.0.0

If you are upgrading: please see UPGRADING.md.

Changed

• Upgrade level-packager from ^4.0.0 to ^5.0.1 (1033aa8) (#59) (@vweevers)
• Upgrade rocksdb from ^3.0.0 to ^4.0.0 (51dfde2) (#59) (@vweevers)
• Apply common project tweaks (#54, #55) (@vweevers)
• Upgrade standard devDependency from ^11.0.1 to ^12.0.0 (#42) (@ralphtheninja)

Added

• Add node 12 to Travis (8132936) (#59) (@vweevers)
• Add nyc and coveralls (#41, #56, #57) (@ralphtheninja, @vweevers)
• Add .npmignore (10f0e72) (@vweevers)

Removed

• Remove node 9 from Travis (9a83c55) (@ralphtheninja)
• Drop node < 8.6.0 (cbe000a) (#59) (@vweevers)

Fixed

• Fix Level badge (344a808) (@vweevers)
• Remove link to dead website (782ba8c) (@vweevers)