rename packages which are not expose throw the API


git-svn-id: https://svn.apache.org/repos/asf/ant/ivy/ivyde/trunk@1520869 13f79535-47bb-0310-9956-ffa450edef68
Document that the API is stable


git-svn-id: https://svn.apache.org/repos/asf/ant/ivy/ivyde/trunk@1520871 13f79535-47bb-0310-9956-ffa450edef68