Move EE-specific images to `ee/app/assets/images` directory
› git diff ce/master..origin/master --name-status ./app/assets/images | grep -e '^A' | cut -f2
app/assets/images/authbuttons/kerberos_32.png
app/assets/images/authbuttons/kerberos_64.png
app/assets/images/favicon-green.ico
app/assets/images/gitlab_for_slack.gif
app/assets/images/illustrations/gitlab_geo.svg
app/assets/images/mailers/approval/icon-merge-request-gray.gif
app/assets/images/mailers/approval/icon-x-orange-inverted.gif
Edited by Rémy Coutable