SAK-23907 removing references to sakai.*.version so maven dependency management is used instead

git-svn-id: https://source.sakaiproject.org/svn/postem/trunk@129661 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAK-23907 removing references to sakai.*.version so maven dependency management is used instead

git-svn-id: https://source.sakaiproject.org/svn/postem/trunk@129663 66ffb92e-73f9-0310-93c1-f5514f145a0a