Moved as much inline JS as possible into static JS files and implemented Drupal.settings to pass values to JS from Drupal. As per comment http://drupal.org/node/1540804#comment-5900054

Removed ability to add unlimited google map field to content types. This can be done using WYSIWYG edit feature.

Output of map fields is now handled by a theme function and custom .tpl file as per http://drupal.org/node/1540804#comment-5900054

Added ability to give a label to individual map where unlimited google map fields are enabled. As per http://drupal.org/node/1540804#comment-5897612