Partial commit with Netty 4.1
License
small fix
Add message debug
Fix WaarpFTP in Netty 4.1
Fix using WaarpSslHandler
Fix SSL issue in FTP server (add handler while channel already active
brings some various concurrency issues)
Final Patch for FTP
Fix for FTP
Small fix on FTP (end of RETR issue)
partial update path to Netty 4.1
Fix from Bruno applied
Fix style and issues as in 2.4.30