Added single map page
Added new line, consts
Refactored url building
Added descriptions
Spacing change
Switched from _ to Camels in template vars
Merge pull request #3489 from Wikia/MOB-1494-special

MOB-1494: Single map page integrated with Special:IntMaps
manually merged MOB-1392-intmap-extension and resolved conflicts in WikiaInteractiveMaps.i18n.php, WikiaInteractiveMapsController.class.php and WikiaMaps.class.php