Added dump function for the Rectangle.
Added Point include
New TODO
Added resize and default constructor to Image
Added paste function to Image
Important TODO
Settings now contain the whole image area.

This is used to separate the area from the whole area of the image (named
whole_area). Since the area variable is used in parallel renderer to denote the
actual tile area, whole_area is needed to compute the aspect ratio of the
image.
Settings dump function
Removed old TODO that is no longer applicable