add change log

git-svn-id: https://plugins.svn.wordpress.org/hrm/trunk@1022058 b8457f37-d9ea-0310-8a92-e5e31aec5664
cange version

git-svn-id: https://plugins.svn.wordpress.org/hrm/trunk@1022060 b8457f37-d9ea-0310-8a92-e5e31aec5664