Move to nifty 0.7.0 release
[maven-release-plugin] prepare release swift-root-0.7.0
[maven-release-plugin] prepare for next development iteration
Move to nifty 0.8.0-SNAPSHOT
Add event handlers support

{pre,post}{Read,Write(Exception)?} handlers are called at the
appropriate times during request processing.
getContext() is called first and it's return value is used as the
context argument of the above calls.