Refactor XMLHttpRequest callbacks to not make use of any library.

This issue needs to be re-tested with the fix for ICE-2842.

According to this ( http://weblogs.java.net/blog/jfarcand/archive/2007/01/configuring_gri.html ) we need to change a few configuration parameters in domain.xml file to have a responsive Ajax application.

Mainly we should change these values:

• change jvm option
  <jvm-options>-server</jvm-options>

• add jvm option
  <jvm-options>-Dcom.sun.enterprise.server.ss.ASQuickStartup=false</jvm-options>

• change 'thread-count' related attributes
  <request-processing header-buffer-length-in-bytes="8192" initial-thread-count="10"
  request-timeout-in-seconds="30" thread-count="130" thread-increment="10"/>

• increment number of acceptor threads to match number of processors/cores
  <http-listener id="http-listener-1" address="0.0.0.0" port="8080" acceptor-threads="2".....

The bug described here was actually fixed on commit with revision: 15968.

The 1-2 seconds delay we see when using the chat in auctionMonitor happens also when running with Tomcat. The delay occurs only on the first 4 chat messages when large DOM updates arrive to the server and their processing introduce the delay. After that when the updates for the listed chat messages arrive as individual updates for each row the browser has to do less processing thus no visible delay in clocks.

Assign to Ted for evaluation.