Bug Fix: Check for the class constant, not the global constant when looking at DEBUG
Bug Fix: Make sure the array item is there before trying to return it.
Internationalize a string
Escaping data before prepping for echoing.  Also simplifying and correcting an i18n call.
Add a few escapes, and a i18n call.
Space out an array of options, add internationalization at a few points, and move from a normal array to an associative array that is iterated through.
Biiiiig whitespace commit.  Normalizes a lot of function opening braces to match WP Coding Style and adds a lot of whitespace to function calls for readability and WP Coding Style.

http://make.wordpress.org/core/handbook/coding-standards/php/