Added cross-reference to Human Contact and Captcha

git-svn-id: https://plugins.svn.wordpress.org/humancaptcha/trunk@783918 b8457f37-d9ea-0310-8a92-e5e31aec5664
Added cross-reference to Human Contact and Captcha

git-svn-id: https://plugins.svn.wordpress.org/humancaptcha/trunk@783921 b8457f37-d9ea-0310-8a92-e5e31aec5664
Added cross-reference to Human Contact and Captcha

git-svn-id: https://plugins.svn.wordpress.org/humancaptcha/trunk@783925 b8457f37-d9ea-0310-8a92-e5e31aec5664