Added functions, filters and actions for duplicator
First commit of duplicator
added location rule for Post Type of "None"
added admin_message to duplicator admin page
corrected whitespace on admin message and added to .pot file
Added load field filters
removed minor comment
removed unnecessary if function_exists check
Added translation function to additional strings
Added columns to admin page
created duplicator field group and transfered to code
Updated strings
Added function stubs for building and registering duplicated field groups
updated strings
fixed interference issue, getting the field group that is currently being used on a post.
Changed init priority to 0 (Zero)