Atmosphere/atmosphere — pull request #546 by zrvan (2012-07-30 14:42:27+00:00)
Title: Changed Atmosphere Interceptors to have three stages, prePayload, transformPayload and postPayload.

The basic idea is that an interceptor like JSONP or SSE adds content in the prePayload and postPayload phase. MessageLength only adds in the postPayload phase. Should an interceptor so require, transformPayload could be used to change the actual content of the message, however the interceptors that are used at the moment does not seem to require any changes to the actual body (nor is it likely that any generic interceptors should/could).