JIRA Issue #1200: http://issues.apache.org/jira/browse/XERCESJ-1200
JIRA Issue #1200:
http://issues.apache.org/jira/browse/XERCESJ-1200

Applying a performance improvement from Jacob Kjome. In getElementById(), before 
walking the tree searching for attributes named "id" first try looking up the element 
with the given ID from the "identifiers" map.

git-svn-id: 21df804813e9d3638e43477f308dd0be51e5f30f@451609 13f79535-47bb-0310-9956-ffa450edef68

ronsigal/xerces,ronsigal/xerces,jimma/xerces,jimma/xerces,RackerWilliams/xercesj,ronsigal/xerces,RackerWilliams/xercesj,RackerWilliams/xercesj,jimma/xerces