Updated French translation.

git-svn-id: https://plugins.svn.wordpress.org/usernoise/trunk@1004238 b8457f37-d9ea-0310-8a92-e5e31aec5664
Added image size attributes for thank you page.

git-svn-id: https://plugins.svn.wordpress.org/usernoise/trunk@1004240 b8457f37-d9ea-0310-8a92-e5e31aec5664