fixed the inconsistent csproj references nuget package restore locations.
Changed layout page
cosmetics
Merge pull request #18 from tugberkugurlu/csprojfix

fixed the inconsistent csproj references nuget package restore locations
Updates to code flow sample
Handled async method and its continuation correctly for AuthenticationHandler.SendAsync
Merge pull request #19 from tugberkugurlu/CorrectAsync

Handled async method and its continuation correctly for AuthenticationHandler.SendAsync
Added support for return custom error response from AuthenticationHandler
Removed some tests that are not applicable anymore
Update readme.md
remove unused field
add PassiveSessionConfiguration class
Updated postback in code flow sample
add session token cache; refactored passiver config apis
check for invalid session token durations
update to load all signing certs
remove unused ctor param
take MaxClockSkew into consideration for sliding sessions
move metadata issuer name registry
ctor param null checks