Update changelog in README.txt

git-svn-id: https://plugins.svn.wordpress.org/hideshowpassword/trunk@942155 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update hideShowPassword.js to v2.0.3

git-svn-id: https://plugins.svn.wordpress.org/hideshowpassword/trunk@942156 b8457f37-d9ea-0310-8a92-e5e31aec5664
Version bump

git-svn-id: https://plugins.svn.wordpress.org/hideshowpassword/trunk@942157 b8457f37-d9ea-0310-8a92-e5e31aec5664