[OpenID] Feedback from OpenID demo

[SitG Admin]

>Then you have chosen not to support checkid_immediate.

Additional thought on checkid_immediate: I could see an OP flow where 
regular login has a default of non-authentication (to RP's), with 
explicit user activity being required to change this action; and 
checkid_immediate login having a default of authentication, with the 
user reserving the option to click (their OP's) cancel within 3 
seconds.

-Shade