Move to Netty 4

[sscarduzio]

I'm using Lettuce in my Vert.x 2.0 project.
Vert.x 2.0 is on Netty 4. So now I have two major versions of Netty in my dependencies. Not sure if this will cause problems.. However, Is there any plans to upgrade to Netty 4.0 in Lettuce ?

-Simone

[wg]

Hello Simone, I do plan to upgrade lettuce to netty 4.0. Not immediately though, suspect it will need a few point releases to stabilize. I noticed they're still making breaking changes in the CR releases, and netty 3 has had a lot of buggy point releases too.

[jongwook]

Hi, I just made a pull request here - #21. Please review and leave me some comments :D
Thanks!