Replaced the Google and Yahoo logos with nicer ones

app/views/user/login.html.erb

@@ -64,10 +64,10 @@ function openid_signin(provider)
                 <%= image_tag "openid_logo.png", :alt => t('user.login.openid_providers.openid.title') %>
             </a>
             <a href="javascript: openid_signin('yahoo');" title="<%= h(t 'user.login.openid_providers.yahoo.title') %>">
-                <%= image_tag "yahoo.gif", :alt => t('user.login.openid_providers.yahoo.alt') %>
+                <%= image_tag "yahoo.png", :alt => t('user.login.openid_providers.yahoo.alt') %>
             </a>
             <a href="javascript: openid_signin('google');" title="<%= h(t 'user.login.openid_providers.google.title') %>">
-                <%= image_tag "google.gif", :alt => t('user.login.openid_providers.google.alt') %>
+                <%= image_tag "google.png", :alt => t('user.login.openid_providers.google.alt') %>
             </a><b>
             <a href="javascript: openid_signin('myopenid');" title="<%= h(t 'user.login.openid_providers.myopenid.title') %>">
                 <%= image_tag "myopenid.png", :alt => t('user.login.openid_providers.myopenid.alt') %>