[HUDSON-6080] Reconciled inconsistency between module root vs workspace usage...

[HUDSON-6080] Reconciled inconsistency between module root vs workspace usage for base in resolving alternate settings path in POM parsing vs actual Maven run

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@29304 71c3de6d-444a-0410-be80-ed276b4c234a