We are 2013 now... (merged from trunk)

git-svn-id: https://svn.apache.org/repos/asf/ant/ivy/core/branches/2.3.x@1427553 13f79535-47bb-0310-9956-ffa450edef68
update the version

git-svn-id: https://svn.apache.org/repos/asf/ant/ivy/core/branches/2.3.x@1427554 13f79535-47bb-0310-9956-ffa450edef68
'Wei Chen' wasn't listed in the contributors list.

git-svn-id: https://svn.apache.org/repos/asf/ant/ivy/core/branches/2.3.x@1427560 13f79535-47bb-0310-9956-ffa450edef68