- Made DOMLSException derive from DOMException, and changed DOMException constructor to allow loading the message from a specific XMLDOMMsg
- DOMLSParser now throws the correct DOMException (when parsing is already in progress) and DOMLSException (when the filter aborts parsing)

git-svn-id: https://svn.apache.org/repos/asf/xerces/c/trunk@409333 13f79535-47bb-0310-9956-ffa450edef68