Merged revision 1604810 from tomcat/trunk:
Add the initial implementation for the permessage-deflate implementation
This is a work-in-progress
- There are still multiple Autobahn failures (or rather there will be once it is plumbed in)
- No support (yet) for compression of outgoing messages


git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk@1625362 13f79535-47bb-0310-9956-ffa450edef68