Added recommendations learn more link (bug 1088304)

https://www.dropbox.com/s/w5mqompvotym0rq/Screenshot%202014-11-21%2011.18.00.png?dl=0
Are we still wary about having to re-translate the string above?

The proper l10n would be:

    {{ _('Yes, show me recommendations based on my installed apps. (<a href="{url}">Learn More</a>)')|format(url='http://google.com') }}