SAK-23179 update purepoms parent to 2.8.7

git-svn-id: https://source.sakaiproject.org/svn/webservices/branches/webservices-1.0.x@118997 66ffb92e-73f9-0310-93c1-f5514f145a0a
[maven-release-plugin] prepare release webservices-1.0.5

git-svn-id: https://source.sakaiproject.org/svn/webservices/branches/webservices-1.0.x@118998 66ffb92e-73f9-0310-93c1-f5514f145a0a
[maven-release-plugin] prepare for next development iteration

git-svn-id: https://source.sakaiproject.org/svn/webservices/branches/webservices-1.0.x@119000 66ffb92e-73f9-0310-93c1-f5514f145a0a