fix deleting a project -> remove all artifacts

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1581698 13f79535-47bb-0310-9956-ffa450edef68
all tests passed with cassandra implementation: does not mean everyhting is really working but a good step :-)

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1581699 13f79535-47bb-0310-9956-ffa450edef68
fix naming

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1581700 13f79535-47bb-0310-9956-ffa450edef68
fix naming

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1581701 13f79535-47bb-0310-9956-ffa450edef68
some cleanup

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1581702 13f79535-47bb-0310-9956-ffa450edef68
more cleanup

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1581703 13f79535-47bb-0310-9956-ffa450edef68