A useful base class for any JMS related servlet; there are various ways to
map JMS operations to web requests so we put most of the common behaviour in
a reusable base class.
Web Connectors so that messages can be sent via HTTP POST or read via
HTTP POST or GET as well as support for web streaming to we browser or
JavaScript clients.
Represents a messaging client used from inside a web container typically
stored inside a HttpSession TODO controls to prevent DOS attacks with users
requesting many consumers TODO configure consumers with small prefetch.