Add iStumbler license to the about:credits page
Add iStumbler license to the about:credits page

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/660083

git-svn-id: http://src.chromium.org/svn/trunk/src@40027 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 99052f9bd6f04de6ea61c2cf82c53c9bbc4d341a
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser