V1.25 - Add checking installed wordpress version. We updated all functionality for wordpress 3.7.1. Bug missing global  in adsns_end_footer_ad function is fixed.

git-svn-id: https://plugins.svn.wordpress.org/adsense-plugin/trunk@803095 b8457f37-d9ea-0310-8a92-e5e31aec5664
We updated readme file.

git-svn-id: https://plugins.svn.wordpress.org/adsense-plugin/trunk@804865 b8457f37-d9ea-0310-8a92-e5e31aec5664