Merge pull request #36 from miremond/saml-update

fix indirect url with new RedirectAction mechanism due to SAML support
generate source and javadoc
add maxAuthnTime to responseValidator to allow an IDP session to be
reused.
Merge pull request #37 from miremond/maxAuthnTime

add maxAuthnTime to responseValidator to allow an IDP session to be reused.
start authorization
remove readRequestContent from WebContext
simplify SimpleRequestAdapter
update time skew to 120 sec for better tolerance