fixes and tested under WordPress 3.9

git-svn-id: https://plugins.svn.wordpress.org/wp-tag-this/trunk@898263 b8457f37-d9ea-0310-8a92-e5e31aec5664
typos;

git-svn-id: https://plugins.svn.wordpress.org/wp-tag-this/trunk@898264 b8457f37-d9ea-0310-8a92-e5e31aec5664
fixing paypal icon;

git-svn-id: https://plugins.svn.wordpress.org/wp-tag-this/trunk@898265 b8457f37-d9ea-0310-8a92-e5e31aec5664