New Template AVM API methods added to generate staging, user sandbox and path asset URLs for virtualisation server.
Some refactoring of constants used in AVMConstants into JNDIConstants to allow repository classes to also use them.
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@5624 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261