[MPOM-86] and MPOM-87: upgrade release and gpg plugin to 2.5.2 and 1.6 respectively

git-svn-id: https://svn.apache.org/repos/asf/maven/pom/trunk@1702133 13f79535-47bb-0310-9956-ffa450edef68
1 file changed
tree: bd8d864ba03a56998ab3003740a9b811a315a38f
  1. asf/
  2. maven/