WebDevStudios/Custom-Metaboxes-and-Fields-for-WordPress — pull request #622 by twoelevenjay (2014-07-17 16:58:14+00:00)
Title: wrap classes in if !class_exists()

wrap all classes in if !class_exists() to prevent conflicts in the event tat someone is running multiple plugins and or a theme that include Custom Metaboxes and Fields for Wordpress.