the update message that the virtualization server
gets is the path to the newly added webapp,
not the path to that webapp in the staging area.
For example, if 'bob' is added to the 'ROOT'
webapp of 'mysite', the virt server now
gets: mysite--bob:/www/avm_webapps/ROOT
not: mysite:/www/avm_webapps/ROOT
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@4704 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261