Update .gitignore


git-svn-id: https://svn.apache.org/repos/asf/ant/ivy/core/trunk@1555371 13f79535-47bb-0310-9956-ffa450edef68
embrace Java 5


git-svn-id: https://svn.apache.org/repos/asf/ant/ivy/core/trunk@1555372 13f79535-47bb-0310-9956-ffa450edef68
Happy new year


git-svn-id: https://svn.apache.org/repos/asf/ant/ivy/core/trunk@1555375 13f79535-47bb-0310-9956-ffa450edef68