Support MySQL Geo Spatial

[c9s]

• http://stackoverflow.com/questions/20865747/geolocation-mysql-query
• http://www.percona.com/blog/2013/10/21/using-the-new-spatial-functions-in-mysql-5-6-for-geo-enabled-applications/
• http://dev.mysql.com/doc/refman/5.0/en/spatial-extensions.html