Upgrade to 0.2.3

git-svn-id: https://plugins.svn.wordpress.org/check-search-engine-visibility-on-migration/trunk@901977 b8457f37-d9ea-0310-8a92-e5e31aec5664
Corrected date and the fact it HAS been tested upto 3.9 :)

git-svn-id: https://plugins.svn.wordpress.org/check-search-engine-visibility-on-migration/trunk@901980 b8457f37-d9ea-0310-8a92-e5e31aec5664