v3.1.0

Bug Fixes

• Make port 80 discovery method more robust - (#66)
• getLaunchedNavies now validates that a navy path is a directory - (#69)

Enhancements

• Remove last usage of the docker cli - (c54df99)
• Port upstream changes from jwilder/nginx-proxy:0.6.0 - (#67)

Testing

• Fix integration testing - (#64)
• No need for the docker cli in the test runner - (c8d7cec)
• Bump default versions for integration tests - (27aa872, ba5225a)
• Test multiple versions of docker-compose - (09bb0f2)