automatically set issuer to be hosting name
filter out external protocol claim types
add SignOut to user service; add owin environment param to authN APIs
add some padding for external provider links
update implicit client for post logout redirect uri
use cookie prefix on xsrf cookie
cleanup prefix usage
Fixes #566
cleanup code getting host name
add unit test for a configured PublicHostName
display client logo on consent page
add activity id to error page
added "RememberLastUsername" feature
rework AuthenticateResult ctor