Merge pull request #278 from wardi/master

new alt text for dataset ranking images
remove "read more about the api" link
add "Open Data" breadcrumb to public site
remove breadcrumb-to-self from dataset search page
use consistent breadcrumb title for dataset search from dataset read page
remove breadcrumb-to-self on organizations index page
remove breadcrumb-to-self on organization view page
fix for org view page on portal site
remove breadcrumb-to-self on resource view page
move leaves int their own directory
separate star(n).png images
use img for openness rating
add French translations for openness rating