* Issue #382 Request compression
Added identity HttpInput.Interceptor
Moved GZIPContentDecoder to jetty-http
Reworking interceptor and GZIPContentDecoder to avoid data copies
Completed and tested GZIPContentDecoder
Implemented GzipHttpInputInterceptor
updated GzipHandler.java
updated gzip module
use common GZIP decoder
Gzip Bomb
handle read() after empty interception