Removed the credits in the footer, add link to the meta homepage.
Removed the credits in the footer, add link to the meta homepage.

copyliu/osmium,osmium-org/osmium,wffurr/osmium,copyliu/osmium,wffurr/osmium,osmium-org/osmium,wffurr/osmium,osmium-org/osmium,osmium-org/osmium,copyliu/osmium,wffurr/osmium