[#1679] IO.writeContent adds newline - forgot one
[#1806] Upsate to netty v3.9.0
[#1806] Up[date to async-http-client V1.8.8
Merge pull request #752 from xael-fry/lighthouse-1806-patch

[#1806] Upsate to netty v3.9.0 and async-http-client V1.8.8
[#1812] Better exit codes for evolutions
Merge pull request #754 from mkurz/lighthouse-1812-patch

[#1812] Better exit codes for evolutions