Fix class header "pour que JFA arrête de chialer comme un Québecois"
Made logger static to improve performance. Fixed logger name, backport #749
Fix handling of multiple double dots above root in parsing of relative URI
Upgrade Netty 3.9.5
[maven-release-plugin] prepare release async-http-client-1.9.0-BETA20
[maven-release-plugin] prepare for next development iteration