Multisite Supported

git-svn-id: https://plugins.svn.wordpress.org/wp-google-map-plugin/trunk@891252 b8457f37-d9ea-0310-8a92-e5e31aec5664
Tested on 3.8.2

git-svn-id: https://plugins.svn.wordpress.org/wp-google-map-plugin/trunk@891253 b8457f37-d9ea-0310-8a92-e5e31aec5664