Ramaze/ramaze — pull request #45 by leucos (2012-06-15 20:44:55+00:00)
Title: Makes gravatar nil-proof

Ramaze::Helper::Gravatar#gravatar method will happpily accept a nil
argument. This releases the developper from checking it the email is
valid. In case of nil email, gravatar.com will return a default gravatar
image (until a MD5 collision happens).