Merge pull request #177 from anilsaldhana/master

see comments
[PLINK2-6] - Picketlink forwards to /hosted for resources without auth-constraints
Merge pull request #178 from pedroigor/master

[PLINK2-6] - Picketlink forwards to /hosted for resources without auth-constraints
[PLINK2-85] - Support SessionIndex when issuing assertions and logout requests.
[PLINK2-11] - The PicketLink IDP behaves strangely if the index.jsp is changed to an index.html.
[PLINK2-86] - PicketLink IDP: make /hosted configurable.
Merge pull request #179 from pedroigor/master

[PLINK2-86] - PicketLink IDP: make /hosted configurable.