[PLINK-386] - Unsolicited IDP initiated Auth via POST binding.
Merge pull request #277 from pedroigor/master

[PLINK-386] - Unsolicited IDP initiated Auth via POST binding.
Merge pull request #278 from krisiye/master

Include NameID and Destination for LogoutRequest as per the SAML V2 Spec...
[PLINK-377] - Bring social dependency in PL BOM.
Merge pull request #279 from pedroigor/master

[PLINK-377] - Bring social dependency in PL BOM.