Revert "Don't recurse"

This reverts commit ed3b3daf96eeae2520979049d1e164a8815e8fd5.
Change async sender not to recurse to avoid stack overflow
SessionListenerBridge.attributeAdded(...) needs to trigger binding event.
UNDERTOW-53 For real this time
XNIO CR5
1.0.0.Alpha14
Next is Alpha15
When serving welcome files redirect if no trailing slash is present
Add support for maxAge into the buffer and LRU caches
Change the way servlet handler chain wrappers work to allow servlet to be bypassed entierly
Add send() methods to the sender API that do not take a callback, and simply end the exchange

Also make the async sender set the content length when these methods are used.
1.0.0.Alpha15
Next is Alpha16
Simplify example
Unused imports
Fix some minor HttpServletRequest issues
WFLY-1361 Make sure the correct TCCL is set when the session manager is stopped
Remove SecureHashMap from the LRUCache
Add handlers that allow or disallow requests based on the HTTP method
Make sure the server will never send a entity body for HEAD requests