API updated

git-svn-id: https://plugins.svn.wordpress.org/loginbycall/trunk@857418 b8457f37-d9ea-0310-8a92-e5e31aec5664
change readme.txt

git-svn-id: https://plugins.svn.wordpress.org/loginbycall/trunk@860098 b8457f37-d9ea-0310-8a92-e5e31aec5664