Add a Netty socks proxy handler during channel initialisation to allow
Artemis to communicate via a SOCKS proxy. Supports SOCKS version 4a & 5.
Even if enabled in configuration, the proxy will not be used when the
target host is a loopback address.
* update qpid jms to 0.22 to pick up epoll change there.
* update netty to 4.1.9 to avoid version issues as qpid also uses.
* add netty-transport-native-epoll bundle to netty-core feature
Since we don't need client implementations any longer, given the maturity level of
qpid jms, these classes can go, as a result a lot of the interfaces can be removed.
As part of this I am removing proton-plug, and reorganizing the packages in a way I think it
makes more sense and easier to other developers to understand and maintain it.
https://issues.apache.org/jira/browse/ARTEMIS-751
Javax.json is a newer JSR, but has an ASF compliant version, is pretty close to the original JSON.org API and will support a standard annotation based JSON-B solution at some point soon.
Updated integration tests and removed JSON.org from license.