QPID-5610: update tool scripts to have classpath reference the assembly lib dir, make snapshot-friendly and simpler in general through use of classpath wildcard expansion

git-svn-id: https://svn.apache.org/repos/asf/qpid/branches/QPID-5610-maven3-build-qmf-tools@1578050 13f79535-47bb-0310-9956-ffa450edef68