setting cookie suggested source

git-svn-id: https://plugins.svn.wordpress.org/adsoptimal/trunk@1032082 b8457f37-d9ea-0310-8a92-e5e31aec5664
update stable tag to 1.2.2

git-svn-id: https://plugins.svn.wordpress.org/adsoptimal/trunk@1032084 b8457f37-d9ea-0310-8a92-e5e31aec5664