Added screen refresh.
Added screen refresh.
Added code comment.
Added licensing information, and code comments.
Added licensing information, and code comments.
Added licensing information, and code comments.
Added licensing information, and code comments.
Removed unnecessary, already commented code.
Added licensing information, and commented code.
Added licensing information, and commented code.
Added licensing information, and commented code.
Added licensing information and code comments.
Added licensing information and code comments.
Added licensing information and code comments.
Added licensing information and code comments.
Added licensing information and code comments.
Added licensing information and code comments.