* Filter mapping optimization (remm)
* Request dispatcher optimization (remm)
* Tag plugins for JSTL
* Optimization of BASIC authentication handling (remm)
* (optional) Optimization of DIGEST authentication handling
* (optional) Realm / auth refactoring (one of the goals would be to add better 
  support for DIGEST)
* (optional) GUI for the deployer
* (optional) Stack size reduction (removal of valves, making methods final 
  to improve runtime performance)
* Deployer refactoring (remm)
* Documentation updates for new user guide book (remm)
* Split main catalina.jar (remm)