Update to new version 1.1.2

git-svn-id: https://plugins.svn.wordpress.org/wp-email-template/trunk@860731 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update changelog

git-svn-id: https://plugins.svn.wordpress.org/wp-email-template/trunk@860759 b8457f37-d9ea-0310-8a92-e5e31aec5664