refactoring

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178820 a5903396-d722-0410-b921-86c7d4935375
Cleaned the code to use XPath and DOM to trave web.xml instead of using Axiom and manual child tree traversing... Fix for WSAS-1253. Fix is currently only in the webapp dashboard.. need to do it in the webapp listing page too.


git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178821 a5903396-d722-0410-b921-86c7d4935375