Show cropped portions of screenshots for screenshot comments

Review Request #152 — Created Sept. 8, 2007 and submitted — Latest diff uploaded


Review Board SVN (deprecated)


Added support for showing the part of a screenshot the user had commented on. This gives reviewers and developers the ability to see what part of the screenshot the reviewer was commenting on without having to go to the screenshot.
Created some test comments on a screenshot and saw that those selected areas appeared in the review body.