Fix copyright.
Don't eagerly create AsyncHttpClientConfig pool threads, close #315
Fix build
Update to 2.3.3.
Re-organization of the Grizzly provider code.
Move GrizzlyConnectionsPool to nested class of ConnectionManager.
Drop Apache HttpClient 3 support, close #318

Die!
Make Netty provider support RFC 6265 cookie encoding, close #319
Minor clean up
- Refactoring of connection and proxy code.
- Update to Grizzly 2.3.4-SNAPSHOT.  This build includes changes that allows Filter instances to be shared between FilterChain instances.
- Remove dead code.
- Remove proxy knowledge from client filter.

TODO - improve documentation.
Minor code cleanup after refactoring.
Formatting.
More cleanup.  Ran intellij inspections and corrected some of the issues that were discovered.
Clean up method signatures - remove unnecessary exceptions.
Fixes #317
One more fix for #317: allow sending message in onSucces
Final fix for #317: allow sending and receiving message in onSucces
tweaks.
Proper Fixes #317
Better fix for websocket handling