Merge pull request #120 from anilsaldhana/master

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Merge pull request #121 from anilsaldhana/master

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Merge pull request #122 from anilsaldhana/master

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Merge pull request #123 from anilsaldhana/master

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[PLINK-147] - The PicketLink IDP behaves strangely if the index.jsp is changed to an index.html.
[PLINK-159] - SAML2AuthenticationHandler should be able to create multivalued attibute statement
[PLINK-159] - SAML2AuthenticationHandler should be able to create multivalued attibute statement
[PLINK2-85] - Support SessionIndex when issuing assertions and logout requests