Merge pull request #411 from pedroigor/master

[PLINK-607] - Allow post processing logic after an SAML Assertion is created by the IdP.
Merge pull request #412 from pedroigor/master

[PLINK-445] - Picketlink should accept AuthnRequest's that don't containAssertionConsumerServiceURL's.
[PLINK-445] - Picketlink should accept AuthnRequest's that don't contain AssertionConsumerServiceURL's.