Corrected http-svn URL for generated docs.
Corrected http-svn URL for generated docs.

git-svn-id: 6b6651cb7a1474d804e7c1d253499ef82fafe10f@116 c52bbda5-c92d-0410-b1d5-fe105dfd41d1

usagi/pngpp,usagi/pngpp