Added a check to prevent map module from craching when the lat lon coords for a location are invalid.
Added a check to prevent map module from craching when the lat lon coords for a location are invalid.

modolabs/Harvard-Tour-iOS,aldeloren/super_secret_thing,modolabs/Kurogo-iOS-old,modolabs/Kurogo-iOS-old,modolabs/Harvard-Tour-iOS,aldeloren/super_secret_thing,aldeloren/super_secret_thing,modolabs/Kurogo-iOS-old,modolabs/Harvard-Tour-iOS,aldeloren/super_secret_thing,aldeloren/super_secret_thing,modolabs/Harvard-Tour-iOS,modolabs/Harvard-Tour-iOS,modolabs/Kurogo-iOS-old