Added a few things to the changelog.

git-svn-id: http://corsix-th.googlecode.com/svn/trunk@1999 c39591fa-788f-11de-a72b-d90af8dea425
Add: Screenshot functionality for OpenGL version.

Hooray for 2000 revisions :)

git-svn-id: http://corsix-th.googlecode.com/svn/trunk@2000 c39591fa-788f-11de-a72b-d90af8dea425