[CONTINUUM-2713] remove DMI from project group members page

Add test for deleting a project from the members page

git-svn-id: https://svn.apache.org/repos/asf/continuum/branches/CONTINUUM-2713@1548525 13f79535-47bb-0310-9956-ffa450edef68
[CONTINUUM-2713] remove DMI from build definition editing

Add missing tests

git-svn-id: https://svn.apache.org/repos/asf/continuum/branches/CONTINUUM-2713@1548526 13f79535-47bb-0310-9956-ffa450edef68
[CONTINUUM-2713] upgrade to the latest version of Struts

git-svn-id: https://svn.apache.org/repos/asf/continuum/branches/CONTINUUM-2713@1548527 13f79535-47bb-0310-9956-ffa450edef68